What I did
- Take a filter that ramps over 3sec (always on)
- edit the foton file top a 1 sec ramp
- start the ramp, but before it finishes - load the new filter.
- The filter module keeps ramping, and never finishes...

- I could reproduce this twice.
- I attached a snap of the still ramping FM1 on LSC-REFLBIAS.

- To fix it, I considered rebooting, but since the I suspected the problem to be a runaway counter, I simply added a filter with 600sec ramp time (long enough to catch the original filter ramp). 10min later (the time it took to write this log) it was fixed...