remove textobjects from available_texts if they are not there anymore

__init__.py

@@ -239,11 +239,18 @@ class FONT3D_PT_panel(bpy.types.Panel):
         font3d = scene.font3d
         font3d_data = scene.font3d_data
         # TODO: properly include this
-        def lol():
+        def update():
             font3d_data.active_text_index = -1
+            remove_list = []
+            for i, t in enumerate(font3d_data.available_texts):
+                if type(t.text_object) == type(None):
+                    remove_list.append(i)
+            for i in remove_list:
+                font3d_data.available_texts.remove(i)
+
             # print(f"{utils.get_timestamp()} ors something")
 
-        run_in_main_thread(lol)
+        run_in_main_thread(update)
 
         return True