I have not been following this closely but post here in case something has changed in the stable release 3.4.3. Tonight might have been the first chance to image with this release.
I am getting the following error. I am west of Greenwich and the Astro-Physics Experimental has been working well for me for a couple of years.

[2020-08-18T19:10:05.748 EDT DEBG ][ org.kde.kstars.indi] - AstroPhysics Experimental : "[SCOPE] CMD <#:Sd -13*47:49#> "
[2020-08-18T19:10:05.748 EDT DEBG ][ org.kde.kstars.indi] - AstroPhysics Experimental : "[SCOPE] CMD <#:Sd -13*47:49#> successful. "
[2020-08-18T19:10:05.748 EDT DEBG ][ org.kde.kstars.indi] - AstroPhysics Experimental : "[SCOPE] <Slew> "
[2020-08-18T19:10:05.748 EDT DEBG ][ org.kde.kstars.indi] - AstroPhysics Experimental : "[SCOPE] CMD <:MS#> "
[2020-08-18T19:10:10.745 EDT DEBG ][ org.kde.kstars.indi] - AstroPhysics Experimental : "[SCOPE] RES ERROR <-4> "
[2020-08-18T19:10:10.745 EDT DEBG ][ org.kde.kstars.indi] - AstroPhysics Experimental : "Error Slewing to JNow RA 18:19:58 - DEC -13:47:49 "
[2020-08-18T19:10:10.749 EDT INFO ][ org.kde.kstars.indi] - AstroPhysics Experimental : "[ERROR] Slew failed. "
[2020-08-18T19:10:10.749 EDT DEBG ][ org.kde.kstars.indi] - AstroPhysics Experimental : "[DEBUG] EXPERIMENTAL: check status... "
[2020-08-18T19:10:10.754 EDT DEBG ][ org.kde.kstars.indi] - AstroPhysics Experimental : "[DEBUG] check_lx200ap_status: received bytes 6, [100000210P000] "
[2020-08-18T19:10:10.755 EDT DEBG ][ org.kde.kstars.indi] - AstroPhysics Experimental : "[DEBUG] parkStatus: 1

Earlier there was some confusion whether the mount was parked or not at startup. The UI showed parked but selecting unpark gave measage: Telescope already unparked.

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