diff --git a/application/migrations/209_unmark_unsupported_lotw_uploads.php b/application/migrations/209_unmark_unsupported_lotw_uploads.php
index ca702492a..d39dd6844 100644
--- a/application/migrations/209_unmark_unsupported_lotw_uploads.php
+++ b/application/migrations/209_unmark_unsupported_lotw_uploads.php
@@ -6,7 +6,7 @@ class Migration_unmark_unsupported_lotw_uploads extends CI_Migration
    public function up() {
 
       $this->db->where_in('COL_PROP_MODE', $this->config->item('lotw_unsupported_prop_modes'));
-      $this->db->update($this->config->item('table_name'), array('COL_LOTW_QSLSDATE' => null, 'COL_LOTW_QSL_SENT' => 'I'));
+      $this->db->update($this->config->item('table_name'), array('COL_LOTW_QSLSDATE' => null, 'COL_LOTW_QSL_SENT' => 'I', 'COL_LOTW_QSLRDATE' => null, 'COL_LOTW_QSL_RCVD' => 'I'));
    }
 
    public function down() {
diff --git a/application/models/Logbook_model.php b/application/models/Logbook_model.php
index e7b390900..490ed82a3 100644
--- a/application/models/Logbook_model.php
+++ b/application/models/Logbook_model.php
@@ -1238,7 +1238,9 @@ class Logbook_model extends CI_Model {
 		  $lotw_sent = 'N';
 	  }
 
-	  if ($this->input->post('lotw_rcvd') && !in_array($this->input->post('prop_mode'), $this->config->item('lotw_unsupported_prop_modes'))) {
+	  if (in_array($this->input->post('prop_mode'), $this->config->item('lotw_unsupported_prop_modes'))) {
+		  $lotw_rcvd = 'I';
+	  } elseif ($this->input->post('lotw_rcvd')) {
 		  $lotw_rcvd = $this->input->post('lotw_rcvd');
 	  } else {
 		  $lotw_rcvd = 'N';
@@ -4890,6 +4892,8 @@ function lotw_last_qsl_date($user_id) {
       $data = array(
            'COL_LOTW_QSLSDATE' => null,
            'COL_LOTW_QSL_SENT' => 'I',
+           'COL_LOTW_QSLRDATE' => null,
+           'COL_LOTW_QSL_RCVD' => 'I',
       );
     $this->db->where("station_id", $station_id);
     $this->db->where_in('COL_PROP_MODE', $this->config->item('lotw_unsupported_prop_modes'));
diff --git a/application/views/oqrs/qsolist.php b/application/views/oqrs/qsolist.php
index cd56a2f9a..90711cd62 100644
--- a/application/views/oqrs/qsolist.php
+++ b/application/views/oqrs/qsolist.php
@@ -176,11 +176,13 @@ if ($qsos->result() != NULL) {
 					$timestamp = strtotime($qsl->COL_LOTW_QSLRDATE);
 					echo " ".($timestamp != '' ? date($custom_date_format, $timestamp) : '');
 				}
-				echo "\" data-bs-toggle=\"tooltip\"";
+				echo "\" data-bs-toggle=\"tooltip\" class=\"lotw-green\"";
+			} elseif ($qsl->COL_LOTW_QSL_RCVD == "I") {
+				echo " class=\"qsl-grey\" data-bs-toggle=\"tooltip\" title=\"".__("Invalid (Ignore)")."\"";
+			} else {
+				echo " class=\"lotw-red\"";
 			}
-			echo ' class="lotw-';
-			echo ($qsl->COL_LOTW_QSL_RCVD=='Y')?'green':'red';
-			echo '">&#9660;</span>';
+			echo '>&#9660;</span>';
 			echo '</td>';
 		}
 		echo '<td id="'.$qsl->COL_PRIMARY_KEY.'" style=\'text-align: center\'><button onclick="addQsoToPrintQueue(\''.$qsl->COL_PRIMARY_KEY.'\')" class="btn btn-sm btn-success">' . __("Add to print queue") . '</button></td>';
diff --git a/application/views/qslprint/qsolist.php b/application/views/qslprint/qsolist.php
index 18c94fab6..aeadf894e 100644
--- a/application/views/qslprint/qsolist.php
+++ b/application/views/qslprint/qsolist.php
@@ -184,11 +184,13 @@ if ($qsos->result() != NULL) {
 					$timestamp = strtotime($qsl->COL_LOTW_QSLRDATE);
 					echo " ".($timestamp != '' ? date($custom_date_format, $timestamp) : '');
 				}
-				echo "\" data-bs-toggle=\"tooltip\"";
+				echo "\" data-bs-toggle=\"tooltip\" class=\"lotw-green\"";
+			} elseif ($qsl->COL_LOTW_QSL_RCVD == "I") {
+				echo "class=\"lotw-grey\" data-bs-toggle=\"tooltip\" title=\"".__("Invalid (Ignore)")."\"";
+			} else {
+				echo " class=\"lotw-red\"";
 			}
-			echo ' class="lotw-';
-			echo ($qsl->COL_LOTW_QSL_RCVD=='Y')?'green':'red';
-			echo '">&#9660;</span>';
+			echo '>&#9660;</span>';
 			echo '</td>';
 		}
 		echo '<td id="'.$qsl->COL_PRIMARY_KEY.'" style=\'text-align: center\'><button onclick="addQsoToPrintQueue(\''.$qsl->COL_PRIMARY_KEY.'\')" class="btn btn-sm btn-success">' . __("Add to print queue") . '</button></td>';
diff --git a/application/views/qso/edit_ajax.php b/application/views/qso/edit_ajax.php
index 3a09e6dcc..f9c067f79 100644
--- a/application/views/qso/edit_ajax.php
+++ b/application/views/qso/edit_ajax.php
@@ -208,7 +208,7 @@
                                             <option value="TEP" <?php if($qso->COL_PROP_MODE == "TEP") { echo "selected=\"selected\""; } ?>><?= _pgettext("Propagation Mode","Trans-equatorial"); ?></option>
                                             <option value="TR" <?php if($qso->COL_PROP_MODE == "TR") { echo "selected=\"selected\""; } ?>><?= _pgettext("Propagation Mode","Tropospheric ducting"); ?></option>
                                         </select>
-                                        <small id="lotw_sent_hint" class="form-text text-muted"><?php if (in_array($qso->COL_PROP_MODE, $this->config->item('lotw_unsupported_prop_modes'))) { echo __("This propagation mode is not supported by LoTW. LoTW sent/received fields disabled."); } else { echo "&nbsp;"; } ?></small>
+                                        <small id="lotw_propmode_hint" class="form-text text-muted"><?php if (in_array($qso->COL_PROP_MODE, $this->config->item('lotw_unsupported_prop_modes'))) { echo __("This propagation mode is not supported by LoTW. LoTW sent/received fields disabled."); } else { echo "&nbsp;"; } ?></small>
                                     </div>
 
                                     <input type="hidden" class="form-control" id="country" name="country" value="<?php echo $qso->COL_COUNTRY; ?>">
@@ -502,7 +502,7 @@
                                         <div class="mb-3 row">
                                             <label for="sent" class="col-sm-3 col-form-label"><?= __("Received"); ?></label>
                                             <div class="col-sm-9">
-                                                <select class="form-select" name="lotw_rcvd">
+                                                <select class="form-select" id="lotw_rcvd" name="lotw_rcvd" <?php if (in_array($qso->COL_PROP_MODE, $this->config->item('lotw_unsupported_prop_modes'))) { echo "disabled=\"disabled\""; } ?>>
                                                     <option value="N" <?php if($qso->COL_LOTW_QSL_RCVD == "N") { echo "selected=\"selected\""; } ?>><?= __("No"); ?></option>
                                                     <option value="Y" <?php if($qso->COL_LOTW_QSL_RCVD == "Y") { echo "selected=\"selected\""; } ?>><?= __("Yes"); ?></option>
                                                     <option value="R" <?php if($qso->COL_LOTW_QSL_RCVD == "R") { echo "selected=\"selected\""; } ?>><?= __("Requested"); ?></option>
diff --git a/application/views/search/search_result_ajax.php b/application/views/search/search_result_ajax.php
index 84fb68c64..1ec06b442 100644
--- a/application/views/search/search_result_ajax.php
+++ b/application/views/search/search_result_ajax.php
@@ -315,11 +315,13 @@ $ci =& get_instance();
                       $timestamp = strtotime($row->COL_LOTW_QSLRDATE);
                       echo " ".($timestamp != '' ? date($custom_date_format, $timestamp) : '');
                    }
-                   echo "\" data-bs-toggle=\"tooltip\"";
+                   echo "\" data-bs-toggle=\"tooltip\" class=\"lotw-green\"";
+                } elseif ($row->COL_LOTW_QSL_RCVD == "I") {
+                   echo "class=\"lotw-grey\" data-bs-toggle=\"tooltip\" title=\"".__("Invalid (Ignore)")."\"";
+                } else {
+                   echo "class=\"lotw-red\"";
                 }
-                echo ' class="lotw-';
-                echo ($row->COL_LOTW_QSL_RCVD=='Y')?'green':'red';
-                echo '">&#9660;</span>';
+                echo '>&#9660;</span>';
                 echo '</td>';
                 } ?>
 
diff --git a/application/views/view_log/partial/log_ajax.php b/application/views/view_log/partial/log_ajax.php
index 8c979709b..3766daf7d 100644
--- a/application/views/view_log/partial/log_ajax.php
+++ b/application/views/view_log/partial/log_ajax.php
@@ -244,7 +244,23 @@ function echo_table_col($row, $name) {
                               break;
                         }
                         ?>>&#9650;</span>
-                        <span <?php if ($row->COL_LOTW_QSL_RCVD == "Y") { echo "title=\"".__("LoTW")." ".__("Received"); if ($row->COL_LOTW_QSLRDATE != null) { $timestamp = strtotime($row->COL_LOTW_QSLRDATE); echo " ".($timestamp!=''?date($custom_date_format, $timestamp):''); } echo "\" data-bs-toggle=\"tooltip\""; } ?> class="lotw-<?php echo ($row->COL_LOTW_QSL_RCVD=='Y')?'green':'red'?>">&#9660;</span>
+                        <span <?php switch ($row->COL_LOTW_QSL_RCVD) {
+                           case "Y":
+                              echo "title=\"".__("LoTW")." ".__("Received");
+                              if ($row->COL_LOTW_QSLRDATE != null) {
+                                 $timestamp = strtotime($row->COL_LOTW_QSLRDATE);
+                                 echo " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
+                              }
+                              echo "\" data-bs-toggle=\"tooltip\" class=\"lotw-green\"";
+                              break;
+                           case "I":
+                              echo " class=\"lotw-grey\" data-bs-toggle=\"tooltip\" title=\"".__("Invalid (Ignore)")."\"";
+                              break;
+                           default:
+                              echo " class=\"lotw-red\"";
+                              break;
+                        }
+                        ?>>&#9660;</span>
                     </td>
                 <?php } ?>
 
diff --git a/assets/js/sections/common.js b/assets/js/sections/common.js
index d0c941223..6ec2bf408 100644
--- a/assets/js/sections/common.js
+++ b/assets/js/sections/common.js
@@ -278,10 +278,12 @@ function qso_edit(id) {
                     $('#prop_mode').change(function(){
                        if (unsupported_lotw_prop_modes.includes($('#prop_mode').val())) {
                           $('#lotw_sent').prop('disabled', true);
-                          $('#lotw_sent_hint').html("This propagation mode is not supported by LoTW. LoTW sent/received fields disabled.").fadeIn("slow");
+                          $('#lotw_rcvd').prop('disabled', true);
+                          $('#lotw_propmode_hint').html("This propagation mode is not supported by LoTW. LoTW sent/received fields disabled.").fadeIn("slow");
                        } else {
                           $('#lotw_sent').prop('disabled', false);
-                          $('#lotw_sent_hint').html("&nbsp;").fadeIn("fast");
+                          $('#lotw_rcvd').prop('disabled', false);
+                          $('#lotw_propmode_hint').html("&nbsp;").fadeIn("fast");
                        }
                     });
 
diff --git a/src/QSLManager/QSO.php b/src/QSLManager/QSO.php
index 009dcb9c8..c7d4137ee 100644
--- a/src/QSLManager/QSO.php
+++ b/src/QSLManager/QSO.php
@@ -386,11 +386,14 @@ class QSO
 				$timestamp = strtotime($data['COL_LOTW_QSLRDATE']);
 				$lotwstring .=  " ". ($timestamp != '' ? date($custom_date_format, $timestamp) : '');
 			}
-
-			$lotwstring .= "\" data-bs-toggle=\"tooltip\"";
+			$lotwstring .= "\" data-bs-toggle=\"tooltip\" class=\"lotw-green\"";
+		} elseif ($data['COL_LOTW_QSL_RCVD'] == "I") {
+			$lotwstring .= "class=\"lotw-grey\" data-bs-toggle=\"tooltip\" title=\"".__("Invalid (Ignore)")."\"";
+		} else {
+			$lotwstring .= "class=\"lotw-red\"";
 		}
 
-		$lotwstring .= ' class="lotw-' . (($data['COL_LOTW_QSL_RCVD']=='Y') ? 'green':'red') . '">&#9660;</span>';
+		$lotwstring .= '>&#9660;</span>';
 
 		return $lotwstring;
 	}