Spectralayers Pro 8 — Erase tool doesn,t work

Actually the topic title describes the situation. No erasing at all in Cubase PRO 12. But it works well as standalone. GIF applied. And it works on another Windows with similar Cubase 12.
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Unfortunately it’s hard to see things given the quality of the GIF. It could be the wrong layer selected, or a wrong parameter, but the GIF is too low to see anything.

Thank you for attempt to help — it has solved by itself! It works now. How? I don’t know…