When I minimize Aseprite, I can’t open its window back again clicking on the Aseprite icon on Dock, if the preview window was previosly opened and active. Clicking on the icon only show the preview window but not the whole main interface window. The 1 and only way to back to work is close preview window and click Aseprite again, or right-click on Aseprite icon at Dock and selecet show all windows.
Source: https://community.aseprite.org/t/aseprite-v1-2-30-and-v1-3-beta7/11466/2
I've tried to reproduce this bug on macOS Monterey, but after minimizing Aseprite the preview window is still open, and clicking the Aseprite icon in the dock restore the main window (the preview is like a completely independent window, it's not minimized/restored)