Basic probe fails on latch return

Hello,

For me, he basically does the first (rough measurement) until the step comes back, this is no longer carried out, regardless of whether the workpiece height or tool length and the whole sporadically.
It happens that I finish several parts with the same program and the first or two run through and then it caught or just caught.
If you wait, a timeout comes as described.
At the moment I only come out when I end Linuxcnc, I haven't tried something else yet.
I suspect something swallows in the order.
I have already discharged the trial entrance, but that was also unsuccessful.
I'll try to implement this with the spindle and see what happens.

Until then, greetings to everyone, Frank