this happends in PT 12.4.0
-write automation to a clip by 'Write To All Enabled'
-change the cliplength with the trim tool
-breakpoints get lost
-add a fade-in or fade-out to the clip
-move the fade-in around
-> the breakpoint possition is set in the middle of the fade-
-> this behaviour is wrong, and when correcting the automation by select the clip, write to all enable, all automation get's lost because there is no automation now at the beginning of the clip -> Because the breakpoint is moved back in the middle of the fading-curve.
This is very annoying and makes a lot of extra work, generates a ton of errors.