Brighter darkness and unwanted Spazmatizm.

I do not know if these bugs are related but they certainly occured about the same time.

I've reduced quality on these videos to be able to upload them. I'll try to send original videos if required.

First video is the one with weird lighting filter. I wasn't able to comprehend something was wrong before I saw the sanity drop. I immediately paused and started recording. When dusk turned to night, the environment became much brighter. I had to rollback a few times as a moose and that may have caused something go wrong. You can see my confusion in the video. 

After I ended the recording I was attacked by several Suspicious Peepers. I got even more confused and then saw Spazmatizm vanish with terrarium as the day came.

In the second video (that was made solely because I wanted to catch anything going awkward), I wasn't originally recording and only started recording after a rollback. I rollbacked because I saw spazmatizm despawn without ever being spawned.

I couldn't find MDMP file.