When I try to launch it, i get the rainbow spinning wheel of death. I upgraded to 2019 after the problem started affecting my Camtasia 2018 (Mac). Support also recommended removing the preferences in the Library. I did that, which let me launch Camtasia ,but when I try to save a project or share it, the rainbow wheel of death starts again and I get a 'Camtasia not responding' message. VERY FRUSTRATED! I'm out $$ and I have program that doesn't work. Any one out there solve this problem?