CTD when creating airport in the SDK

Hello, so I have been using the SDK to make my own simple airport in the sim that only has a few objects. At first, everything was going fine; however, starting a few days ago, I began to experience random CTDs when working in the editor. Sometimes I will get an error that says a breakpoint has been reached with the code 0x80000003, and other times there will be no error at all. I did a Google search and saw some people say to change the virtual memory to automatic and to make sure there was sufficient disk space which there was and the VM was already set to automatic. Some other things I checked are as follows

Restarted the computer

Ran the sim with all mods disabled

Made sure everything was up to date, including my drivers and Windows itself, which they were

Ran both the memory tester and disk checker, which showed no errors.

Ran an integrity check of the game’s files through Steam

Also, not sure which version of the SDK I have, but I made sure to update to the latest version, but unfortunately, none of that worked

Also, I have done a little flying in between, and I don’t seem to have the problem then only when working in the editor.

So, any suggestions on how I can fix this?

Thanks