Just a follow up on this bug / issue... Using Nou's astro-soft build scripts.gitea.nouspiro.space/nou/astro-soft-build.
Building the stable release ./build-soft-stable.sh works, The Solver Sync radio button is enabled for my Celestron CGX.
Building the bleeding edge ./build-soft-latest.sh. results in a greyed out Solver Sync radio button.

All using the same setup. Would rebuilding the profile and optical trains from scratch help this?
I didn't see anything in the logs, when I last looked.

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