I have used TT since 2010. For some reason TT 2019 is requiring a new validation every time I open it. Yes, 2019 is open but I quite often refer back when I am doing tax planning. This was inconvenient but not terribly so the first 4 times it happened. However now I get a message that all my 5 licenses have been used so I can't access TT2019. TT2020 and TT2018 don't exhibit this behavior. So I have to do my tax planning with hard copies of my 2019 return. I think it is time I find a different vendor than TT as their support system sucks as well.
