Thanks! I suspected this also, but disabling the topic list previews plugin doesn’t fix the format errors. Might require a full uninstall of the plugin.
Edit: Adding confirmation, removing the topics list previews plugin does indeed fix the format issues @huynhthai824 and I were experiencing. Simply disabling the plugin did not fix it, at least for me. To uninstall plugins, can just use these instructions: How to completely uninstall / remove a plugin