Strange error after jumping to 2026.1.3

Product: PowerShell Universal
Version: 2026.1.3

Upgraded to 2026.1.3 on our test server which went well, then on prod server and all the API and Script and Apps files looks strange and thus can’t be started

not much time for finding the cause, need to revert back to older version…

even creating a new file have this problem.

current version is 5.6.12

I recall seeing this in another thread, solved by clearing browser cache/cookies for the site.

thanks for the reply, but will clearing browser cache help PSU server error?

Sorry no, should have noted that the cache thing is for that white box in the editor.