I have the same issue.
AciveState state has only ever been installed for one user on my computer. Over a few days prior to yesterday I removed a project and installed another several times, and ended up with none installed. Yesterday, whilst installing a new project (the only one associated with my account) I saw the heads up message ‘You are using 2 out of 1 available runtimes.’
Today, opening a Command Prompt in the project folder (containing the .yaml files), then running ‘state use’ or ‘state shell’ gives the heads up message ‘You are using 2 out of 1 available runtimes.’
I will check whether this is still the case in 24 hours or more.
I have one project for one user on Windows. As long as I can continue with that, I shall ignore the message. If I am prevented from continuing without upgrading, then (after 11 years of using ActiveState) I shall simply go elsewhere.
Until ActiveState assist further with resolving why I am seeing ‘can’t load dll’ during the compile phase when running a script (see Unusable Perl 5.36 build - compilation failures due to various dll files not loading), I have zero ActiveState projects in use.