I just installed 1.8.0, but unfortunately this bug has returned. The HIF thumbnail for a vertical photo is not oriented properly. When I click on the thumbnail the full size photo is properly oriented though.
Is it necessary to uninstall 1.8.0 before reinstalling 1.7.2 on a Mac? Can I just install 1.7.2 without uninstalling 1.8.0 and it will do the right thing? I have done lots of configuration to XnView and I do not want to lose all of that if I go backwards.