When creating NFS share with NFS Clients * it comes with error

I create a new NFS share in Rockstar v3.8.4 [latest] and want to allow all nfs clients * but it comes with error, see screen shots with steps to generate the bug/error. I find the html display more a cosmetic bug, but that’s the perfectionist in me.

Not sure if you want me to create another bug ticket, but when I change in advanced settings the ro into rw it doesn’t reflect in the settings displayed on the nfs share.