Can't save blueprint or engage IPV6

I cannot turn on IPV6 loopback. Nothing happens when I click the button. I was able to use this feature before. Recently reset windows and now it’s not working.

Also, I can’t save blueprints. The context menu command is gray/unavailable. I’ve never tried to use this feature before so not sure if it’s related to the IPV6 loopback issue.

Anyone had a similar problem? Thanks

Fresh install yesterday and i have the same issue on V3.0.0