Crashes when moving fast with wide watercolor brush

Dear community

I work a lot with Fresco on my iPad Pro 10'. Overall I am very happy. However, it often happens that I move the big watercolor brush a bit fast. In this case I get a freeze and the work (document) becomes unusable. The editable layers are just black and the thumbnails all just show a transparent blank area.

Is there a setting that can fix this? Or undo the "crash"? It is annoying when working time is lost.

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Thank you for information