Fix bug where not all previews are shown, closes #9895

editor/editor_resource_preview.cpp

@@ -180,11 +180,13 @@ void EditorResourcePreview::_thread() {
 
 			if (cache.has(item.path)) {
 				//already has it because someone loaded it, just let it know it's ready
+				String path = item.path;
 				if (item.resource.is_valid()) {
-					item.path += ":" + itos(cache[item.path].last_hash); //keep last hash (see description of what this is in condition below)
+					path += ":" + itos(cache[item.path].last_hash); //keep last hash (see description of what this is in condition below)
 				}
 
-				_preview_ready(item.path, cache[item.path].preview, item.id, item.function, item.userdata);
+				print_line("cached: " + item.path);
+				_preview_ready(path, cache[item.path].preview, item.id, item.function, item.userdata);
 
 				preview_mutex->unlock();
 			} else {
@@ -199,12 +201,16 @@ void EditorResourcePreview::_thread() {
 
 				if (item.resource.is_valid()) {
 
+					print_line("generated: " + item.path);
+
 					texture = _generate_preview(item, String());
 					//adding hash to the end of path (should be ID:<objid>:<hash>) because of 5 argument limit to call_deferred
 					_preview_ready(item.path + ":" + itos(item.resource->hash_edited_version()), texture, item.id, item.function, item.userdata);
 
 				} else {
 
+					print_line("from file: " + item.path);
+
 					String temp_path = EditorSettings::get_singleton()->get_settings_path().plus_file("tmp");
 					String cache_base = ProjectSettings::get_singleton()->globalize_path(item.path).md5_text();
 					cache_base = temp_path.plus_file("resthumb-" + cache_base);