Selective tool in NIK4 behaves erratically


Soon after upgrading to NIK4 the troubles with Selective tool begun to appear. It simply vanishes - not going out of focus after selecting some effect and reappearing when the process is finished - it just does not appear again, neither in expanded view, nor in icons-only one, either floating or minimized. Going to PS file menu and activating it via Automate option doesn’t help either. It appears on the screen at the last position, but as soon as I move cursor or, at best, if I succeed to reach it and click on it to move it somewhere else, it disappears, period. None of the NIK filters recalls it back. In NIK3 I didn’t have any problem with it.

Thanks for any help!