It has come to our attention that users are getting an error “GACTX: Variable non-existent” when clicking on a classic page after patching 2022 R3, if the MAXSES1 or MAXSES2 parameter values for some users (ALL/Setup/users/User parameter/ "SUP" Chapter/ "SES" Group) are different from 0.
The hotfix is available on our ftp site under the Hotfixes sub folder alternatively change the above parameters to 0 for users who have this connection issue.
If you haven't installed 2022 R3 yet, please make sure the parameters MAXSES1 or MAXSES2 are set to 0 or install the hotfix just after patching.
This issue is fixed in 2022 R4 release.