Can't Save Group - Too Many Group Names?

I’m creating a new group in Looker Studio. After updating the various fields with the correct information, it won’t let me save. When I click the “Save” button, nothing happens.

Is it being overwhelmed by the number of group names I have (100+)? Is it something with my computer?

I’ve been able to create other groups with no issues. However, when I try to create this specific group with 100+ group names, it doesn’t let me save it.

I couldn’t find anything online that stated a maximum number of group names, so I’m not sure what the issue is.