ID:2829099
 
Resolved
Deleting atoms from the map and then re-compiling did not remove them.
BYOND Version:515.1591
Operating System:Windows 10 Home 64-bit
Web Browser:Chrome 106.0.0.0
Applies to:Dream Maker
Status: Resolved (515.1592)

This issue has been resolved.
Descriptive Problem Summary:
deleting anything from a map file and recompiling causes the deleted stuff to come back
edit: this will also undo other changes to maps, such as adding more z levels or increasing the x/y size

Numbered Steps to Reproduce Problem:
place stuff on a map
compile
delete stuff off the map
compile
stuff comes back on its own

Workarounds:
placing an object on the map after making changes will cause changes to save
I can't confirm this with your other test cases. Can you break this down into more detail? Down to the exact steps you take, if possible.

I tried testing with your MapLoadingIssue test case and deleting the mob on the map did not cause any of the problems you mentioned.
i made a gif to show it, same steps as the first post

It looks like the problem here is your steps are nowhere near detailed enough for me to reproduce the issue. For instance you didn't mention anything about using the rectangular selection tool, which is very relevant.

I tried to follow along what you did in the .gif and used the select rectangle tool to delete, but there wasn't an issue like the one in your .gif. There was a problem where the mobs suddenly changed to the light blue "flicked" state, so that's wrong for sure, but I think it's a totally different issue.

Can you break down your steps in more detail so I can confirm?
Lummox JR resolved issue with message:
Deleting atoms from the map and then re-compiling did not remove them.
So it appears the main reason I was having trouble reproducing this in the debugger was that some other fix must have already dealt with this inadvertently.