Through a somewhat complicated testing process I have established that mystery crashes in GMS2.3 have something to do with actively using structs!

So… here’s a build (GMLiveForGMS2.3-experimental) that just doesn’t use structs. Arrays all the way down!

This is not warranted to cure 100% of crash cases, and it will not spare you of crashes that are related to using structs in your own code, but in test projects this helped a lot.