My problem with Affinity was again again ... now in Affinity Photo it was the same in Designer (all Affinity installed, newly cleaned registry and deleted AppData directories). The problem appeared when I copied a layer from one document to another (in the same AF work window) I want to scale this layer and again I can't. Scaling has stopped working. I switch to other layers and I can't scale them. I switch to other tools and return to Move tool - nothing. Layers are not locked (no padlock icon) and the scaling frame has dots rather than X. Even a moment later I noticed that in the open Affinity Designer (yes I have two Affinity applications open) Move tool also stopped working. After restarting both applications is ok. Document reopened - scaling works. I work in the final versions of Affinity (Designer, Publisher and Photo), although beta is also installed - I don't know if it matters.
Maybe the description will bring the problem closer to developers.
Platform: Windows 10 Pro, Ryzen 7 2700X, 32GB RAM, Nvidia GeForce GTX 2600