I followed all the steps in the answer to the previous person's post, but when I click "Activate" it just keeps going back to the "PreSonus Login" window and asking me to log in again. I know I've got the email and password correct (I use a password manager and I copy the password from that, I can also log into the web site ok)
Selected - Activate my purchased version of Studio One
Product key - copied and entered
DIDN'T select - I have purchased an upgrade of Studio One
Running Windows 10 Pro (version 1903. OS build 18362.356)
16GB RAM, Intel Xeon E5-1650 @3.2GHz