Edit Group members won't load users

[Frantisek_K]

When I Impersonate "scrum_admin" user and open one of the Agile groups, I want to edit the group members.
Then I click on "Edit" and the list of users starts Loading, but it takes too long or doesn't fishish as in the image.

I'm very much convinced it is an ACL issue. Most likely too complex to evaluate.
We have over 300k Users.

The problem is, that I am unable to find which ACL exactly causes this issue. I have searched all related to "sys_user", "customer_contact", "sys_group", "sys_user_grmember". Did not find any scripted ACL that could be causing this.
Looked at the debugging console and couldn't narrow it down that way either.

Any ideas how can I pinpoint the specific ACL causing this?

[Dr Atul G- LNG]

Hi @Frantisek_K 

Try to filter the users and then search like show only active users.

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0814702

https://www.servicenow.com/community/now-platform-forum/error-when-loading-slush-bucket/m-p/1098462

[Frantisek_K]

Hi, thanks for quick reply.
This does not really solve the issue as the filter is not there in advance and it won't let me add it until it fails. That itself freezes the screen for like 15 seconds.

Also, I don't have this issue with other roles. Its all fine with Admins or User Admins. It's happening for Scrum Admins.

[Dr Atul G- LNG]

Hi @Frantisek_K 

My knowledge say, let wait for experts input or you can log a Now Support case with SN.