I have a similar problem. After turning on Preasure Advance printer stopped directly after the purge line during the move to the first line of the print. Print crashe with “Internal error on command G1”
@Sineos I do some tests and now I know what causes the G1 error, I think.
The problem is the combination of the PA and the pause at the end of my purge line at the end of the start script. If I set the PA, Klipper waits 2000ms after the purge line and raises an error G1. If I remove the “pause” line from the startup script, everythink is ok.
I have been using this startup script for about half a year and the printer is failing only now.
Thanks. I am able to reproduce this problem locally. This appears to be a regression introduced in the recent toolhead flush rework (for pwm_tool). The regression is introduced in commit c491ea66.
I will try to track down the root cause and a fix.