Here is a list of a few autos I made that broke after being published and while editing staged they were possible.. https://www.freeriderhd.com/t/540517-my-longest-auto-so-far https://www.freeriderhd.com/t/542427-g-1tc-algorithum https://www.freeriderhd.com/t/541996-pathological
I don't know how it happens myself, but it's been around for a long time here. You can export/import to make sure they don't break. Generally, I've found when playing the newest tracks that all autos and hold-somethings work fine, though after 3-5 minutes some of them break.
when publishing an auto ALWAYS export the code and import it again, test the auto. if it dosent work then your auto is broke. I just usally delete the whole thing e: woops cctv said the exact same thing haha
what about mines https://www.freeriderhd.com/t/299339-project-auto-v2 it worked for a few months and then it broke