HI Sven
Well the second coffee's kicked in, and I'm starting to wake up.

At first I couldn't think why the comma was there in your file and not mine, and you had "2000" not "200" but then remembered that CB has a number format string (different countries have different formats using comma's to delimit the thousands ect) so I've posted what my number format looks like, so you can check with yours and make it's the same.
Once you have changed it remember to make the changes to your Template file, which you should use when starting
a new project using the PP. otherwise the changes you make wont stick and you will have to make the changes manually every time you want to use the Feed Rate Adjuster.
There are
two places in the CB file where you can set the number format make sure they are both the same as mine.
If I get some time this Afternoon, I do some more checking of the other types of mops, to see if there are no problems adjusting feed rates in those mop's as well.
Dave