The bounds that get reset are the ones under the "world" entity in the hierarchy. They are under the Dimensions section and have Bound Mins, Bound Maxs, and Block Size. Editing the bounds here does nothing. In terms of files, the bounds are found in the default.layer file. You can modify them there, save them, and then open your terrain and the world bounds will be correct. But as soon as you save your terrain in World Editor again they are reverted and you have to modify default.layer again. It's an annoying process.

I recommend closing this. I had this issue on one map. Other people aren't seeing it. Not sure what's going on. It would be really nice if there was a list of requirements for things to work correctly.

That was it! Thank you kawalec! This can be closed.

You can close this. It's a duplicate of https://feedback.bistudio.com/T177292 which I didn't know was filed by the person I was talking to about this on Discord.

In response to solid_snek, if it is intentional, it needs to be covered as soon as you get into the jeep in the tutorial because it can happen in the first base.

Forgot to add this video: https://www.youtube.com/watch?v=Vdzl3WlmUgI

same problem as above still:

Tried using the new binarize version you sent me but ran into the same problem (according to the error message).