I ran this again with kstars debug version in gdb and got this back:

(gdb) bt
#0 Ekos::FilterManager::setFocusStatus(Ekos::FocusState) (this=0x0, focusState=Ekos::FOCUS_PROGRESS)
at /usr/src/debug/kstars-3.6.1-lp154.35.3.x86_64/kstars/ekos/auxiliary/filtermanager.cpp:688
#1 0x0000555555b8189a in Ekos::Focus::<lambda(Ekos::FocusState)>::operator() (state=Ekos::FOCUS_PROGRESS, __closure=0x55555d17f890)
at /usr/src/debug/kstars-3.6.1-lp154.35.3.x86_64/kstars/ekos/focus/focus.cpp:3778
#2 QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<Ekos::FocusState>, void, Ekos::Focus::setupFilterManager()::<lambda(Ekos::FocusState)> >::call (arg=<optimized out>, f=...) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:146
#3 QtPrivate::Functor<Ekos::Focus::setupFilterManager()::<lambda(Ekos::FocusState)>, 1>::call<QtPrivate::List<Ekos::FocusState>, void>
(arg=<optimized out>, f=...) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:256
#4 QtPrivate::QFunctorSlotObject<Ekos::Focus::setupFilterManager()::<lambda(Ekos::FocusState)>, 1, QtPrivate::List<Ekos::FocusState>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *)
(which=<optimized out>, this_=0x55555d17f880, r=<optimized out>, a=<optimized out>, ret=<optimized out>)
at /usr/include/qt5/QtCore/qobjectdefs_impl.h:443
#5 0x00007ffff0c30aab in () at /usr/lib64/libQt5Core.so.5

etc ...

Is this expected given I have no filter wheel attached?

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