I can't seem to access the Sketchup 3D warehouse from Pro

[ateliernab]

have you tried this?

there is a “classic” bug that make a handful of panels go way outside of the screen on PC

Component window missing on screen Just Upgraded to 2021 (losing my mind)

Follow this guide exactly after “Make Component…” Hold down the ALT key. Hit SPACEBAR. Release ALT key Hit M (Move). Hit one of ← ↑ → ↓ arrow keys Move your mouse around (without pressing any mouse key) until you see the missing window. Press left mouse button on the desired place ( Note I assume you have English windows otherwise you may need to replace “M” with a localized start letter, e.g. “L” in French)