I am having the crashing issue with the fitsviewer enabled on windows... sometimes with it disabled... I was using V3.3.2 from the normal download.... When I use the nightly build (I tried tonight with kstars-master-87-windows-msvc2017_64-cl.exe ) & if fitsviewer disabled, the sequence works fine.. When I have finished tonight's sequence I may be able to test some more.... PhilRead More...