[Plugin: wp Time Machine] I'm using 3.3.1 and this plugin breaks visual/html tab on backend

Hi, I installed this plugin and my user reported they could no longer access the Visual tab from within their edit post/page section. I turned off this plugin and the problem immediately went away. Turning it back on/off again verified that this plugin was the issue. I use this plugin on a lot of others sites and haven’t run in to this before.

https://www.ads-software.com/extend/plugins/wp-time-machine/