Secret Base Door Bug - Walking Through/On Walls

So I have been noticing problems surrounding the door to secret bases that wouldn’t let you go in. Occurs across several of the tileset options. Usually, if you just back up and go back towards it the door will let you out. But just now, instead of backing up I just stopped and tried to walk through and now we’re atop the cavern walls. Found a friend up here, seems odd. Figured I’d send in a bug report on the off chance that people were unaware.
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Also worth mentioning that the Cyan Cave mailbox is invisible, a few steps directly in front of door