Hi Pavel,
I just performed a fresh install on a computer (Windows 10) and did not get this issue (but I did not test all profiles again).
Could you remind me which platform (windows/linux) you are on? Which printer profile creates this problem?
On windows the profiles are in %appdata%\IceSL\icesl-printers (also reachable from menu, 'open asset folder').
If you have custom profiles you might have an error where 'retract' does not return a number (it should). We added an error check for this, but this was in place for beta5, for sure.
You can also grab latest profiles from, to manually update yours
Please let us know how it goes.
Thanks!
Sylvain