diff --git a/src/templates/apps/gameboard/my_sea_visit.html b/src/templates/apps/gameboard/my_sea_visit.html
index ded7aac..52ca954 100644
--- a/src/templates/apps/gameboard/my_sea_visit.html
+++ b/src/templates/apps/gameboard/my_sea_visit.html
@@ -158,6 +158,15 @@
                 for (var k in card) { if (Object.prototype.hasOwnProperty.call(card, k)) c[k] = card[k]; }
                 c.reversed = !!e.reversed;
                 window.SeaDeal.register(c, '.sea-pos-' + e.position, e.polarity === 'levity');
+                // register's _fillSlot sets --filled (opacity:0) but not
+                // --visible (the owner adds that on stage-dismiss; the
+                // spectator has no modal). Add it here in the SAME tick so the
+                // card lands at its final opacity — matching the refreshed
+                // state — instead of racing the empty→filled opacity transition
+                // (the long-standing my_sea ease-in/ease-out glitch).
+                var cell = cross.querySelector('.sea-pos-' + e.position);
+                var filled = cell && cell.querySelector('.sea-card-slot--filled');
+                if (filled) filled.classList.add('sea-card-slot--visible');
             });
             // Re-empty any slot the owner cleared (DEL → empty-hand broadcast).
             cross.querySelectorAll('.sea-card-slot.sea-card-slot--filled').forEach(function (slot) {