I’m running 1.5.6 doing a 3 tool 3d carve job. First run that trashed the stock on a gsender lock up on the tool change. Restarted the job on a fresh stock. This time gsender initiated the tool change but seemed to short cycle the inital tool probe. Went straight into probe the changed tool. When I re-probed the changed tool and resumed the job, it had lost it’s zero opting for using the homed machine zero apparently.
So the second run was a user head failure on the specific changes to the tool change routine implemented in 1.5.6. I was also having an issue that required replacement of the T12 anti-backlash nut. I got a replacement a while back anticipating the need. The lockup was legit though but it only happened that one time. .