Probing with feedrate less than 18mm/sec puts machine into FROZEN state and RESET is needed.

[Tegeon]

This issue is probably related to #176. I am unable to probe on TinyG with less than 18mm/sec feedrate. I have recorded 2 probing cycles starting with F20, then F19, F18 and F17 resulting in machine freeze, then RESET and another cycle.

EDIT: Video link updated:
You will find the video here: https://www.youtube.com/watch?v=R6uxGo4S_Yo

[Tegeon]

The sjps returns < {"er":{"fb":442.04,"st":31,"msg":"Move time is NAN"}} when faulty probe (F17 or less) is used. I attach the SJPS log below.
sjps-verbose-log.txt