Permissions change to read only\ missing share

I'm having a number of issues with my NV+ that have just started after years of reliable service

It all started with a drive failure which has been replaced, everything synced fine but I had permission issues. Despite being set for read\write in the CIFS mode and checking the advanced options of set permissions and grant permissions for non-users, my data remained read only.
After upgrading to the latest firmware I regained the proper permissions again.

Issues:
1. During testing I tried creating a share called "test". I then deleted it. The system still thinks that share exists. I cannot recreate it and I get the error:
The paths for the shares listed below could not be found. Typically, this occurs when the ReadyNAS is unable to access the data volume. test

2. I have been backing up my data and "cleaning" unneeded files. After doing this for a couple of days the NV+ started locking up and now my permissions are hosed again. When it locks up I can only kill the power. Power button does nothing.
After a power cycle, a quota check and resync nothing is reported as failed.

3. While trying to fix my permissions in the CIFS advanced tab, everything reports back successful. The share and its subfolders have been configured to allow non-owner delete and rename. But still remain read only despite the change

Any help or ideas would be appreciated. I've done everything I could find here and could do through the front view short of resetting.

Thanks