Clicking any anchor tag like (anchor tag)[#title] would cause the entire content to have extra padding on the bottom. And the entire top part of the app would become inaccessible until I force the app to refresh or use shortcut to put it back into edit mode.
Thank you for the report. TOC plugin is made by a user:
But the last release (v3.20.2) broke this plugin as I mentioned here:
Unfortunately, the author has deleted his account so the plugin is no longer maintained.
It seems that not so few people uses TOC plugin so far.
I will republish it as an official plugin later.