I've tried running apt remove indi-full, and apt autoremove, which sure enough removes indi-asi and libasi too.
Reinstalling indi-full results in the following versions being installed:
indi-full = 1.9.1-202106280946-ubuntu20.04.1
indi-asi = 1.9~202106280200-ubuntu20.04.1
libasi = 1.18~202106271742-ubuntu20.04.1
ls /usr/lib/x86_64-linux-gnu/libA* reports /usr/lib/x86_64-linux-gnu/libASICamera2.so.1.19 though.
Does anyone know if those versions are correct? The libasi version looks suspicious
What libasi version is indi-asi expecting? Can I just force an installation of the correct version.
Surely the ASI driver dependencies haven't been broken for over a month in the PPA have they?
I am also running on x86_64 20.04, KStar 3.5.4 stable and show the same version for those files you list. I do not appear to have the undefined symbol error to which you linked in the logs. Not noticing any current problems, using ZWO camera and filter wheel. Running updates on a weekly basis.
Thanks that's good to know.
I've installed a fresh VM on another machine, I'll give that a go later and see whether that works, if it does, and it's working for you then I have no idea what the problem with my real machine might be.
You could try looking up what package contains the file /usr/lib/x86_64-linux-gnu/libASICamera2.so.1.19. dpkg can do that, I just don't remember the right switch.
If everything checks out, I'm out of ideas, but I suspect there's a stray file here.
The libasi package also contains libraries for ZWO EAF focuser, EFW filter wheel and USB-ST4 interface in addition to the camera library and I've just increased the package version number every time one or more of them updates instead of using some magic number derived from four different version numbers . So it's purely coincidental that the numbers happen to be close, earlier ZWO used date based versioning but recently moved to similar increasing versioning.