test item refuses to print with supports this way up in prusaslicer —

Founded test item refuses to print with supports this way up in prusaslicer models & stl files for printing
PowderPuff Unicorn
ChaosCoreTech
LVT A4 easy print
WindhamGraves
Tough PLA Box with Living Hinge
MakerBotPartnerLibrary
Luaz 969 easy print
WindhamGraves