Cache forms until the player has fully initialized

core/src/main/java/org/geysermc/geyser/session/cache/FormCache.java

@@ -52,9 +52,15 @@ public class FormCache {
         return windowId;
     }
 
-    public int showForm(Form form) {
+    public void showForm(Form form) {
         int windowId = addForm(form);
 
+        if (session.getUpstream().isInitialized()) {
+            sendForm(windowId, form);
+        }
+    }
+
+    private void sendForm(int windowId, Form form) {
         ModalFormRequestPacket formRequestPacket = new ModalFormRequestPacket();
         formRequestPacket.setFormId(windowId);
         formRequestPacket.setFormData(form.getJsonData());
@@ -68,8 +74,12 @@ public class FormCache {
             session.scheduleInEventLoop(() -> session.sendUpstreamPacket(latencyPacket),
                     500, TimeUnit.MILLISECONDS);
         }
+    }
 
-        return windowId;
+    public void resendAllForms() {
+        for (Int2ObjectMap.Entry<Form> entry : forms.int2ObjectEntrySet()) {
+            sendForm(entry.getIntKey(), entry.getValue());
+        }
     }
 
     public void handleResponse(ModalFormResponsePacket response) {

core/src/main/java/org/geysermc/geyser/translator/protocol/bedrock/BedrockSetLocalPlayerAsInitializedTranslator.java

@@ -55,6 +55,9 @@ public class BedrockSetLocalPlayerAsInitializedTranslator extends PacketTranslat
                     if (session.getOpenInventory() != null && session.getOpenInventory().isPending()) {
                         InventoryUtils.openInventory(session, session.getOpenInventory());
                     }
+
+                    // What am I to expect - as of Bedrock 1.18
+                    session.getFormCache().resendAllForms();
                 }
             }
         }