Suddenly I started seeing an issue, when opening any "Environmental variable definition" record, the subgrid of "Environmental variable value" showing access errors. This is totally unacceptable, since I'm a System Administrator.

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We are in UCI only stage now in our orgs. Though there are challenges, we are happy with UCI. :)

On investigation, this happen to be an UCI only issue, working fine in classic form. Before that, the investigation showed that I was able to read/access it in Flow Automate. Also able to update them using web api call as well. I thought the easiest option is opening it in classic mode, but I was wrong.

So during that troubleshooting exercise, this forceUCI=1 annoyed us, because everytime we open the entity record - it opened the UCI form and when we removed the appid querystring from browser url, it was getting appended everytime. We have to open in classic mode to overcome this issue.

forceUCI=0 also didn't work. Only forceClassic=1 did the trick. We can use this workaround for now.

I have created a ticket with MS support, they took the logs and investigating further to see - why this access issue is happening only in UCI, that too for Sys Admins.

Failure attempts:

https://devorg.crm.dynamics.com/main.aspx?appid=abea523e-a52b-eb11-a813-000d3adcf619&forceUCI=1&newWindow=true&pagetype=entityrecord&etn=environmentvariabledefinition&id=2bbcf41f-0b8b-4a4f-accd-cb9aa60b6613

https://devorg.crm.dynamics.com/main.aspx?appid=abea523e-a52b-eb11-a813-000d3adcf619&forceUCI=0&newWindow=true&pagetype=entityrecord&etn=environmentvariabledefinition&id=2bbcf41f-0b8b-4a4f-accd-cb9aa60b6613

https://devorg.crm.dynamics.com/main.aspx?forceUCI=0&newWindow=true&pagetype=entityrecord&etn=environmentvariabledefinition&id=2bbcf41f-0b8b-4a4f-accd-cb9aa60b6613

Successful attempt:

https://devorg.crm.dynamics.com/main.aspx?forceClassic=1&newWindow=true&pagetype=entityrecord&etn=environmentvariabledefinition&id=2bbcf41f-0b8b-4a4f-accd-cb9aa60b6613

Fingers crossed for the permanent fix!