SMB broke in 13.2

more investigating shows that both Macs can mount shared volumes from windoze systems. No system either

Mac or windoze can mount the Mac volumes.

the problem still exists. have been in contact with apple support and have not gotten anywhere.

what I have done so far is:

1. boot both systems in safe boot, problem still existed even when both running in safe mode.
2. created a brand new boot drive for the iMac (which has the drives attached to it). Created a local only account on the drive, no iCloud no settings from my old accounts. Still the Mac Studio can not mount the drives on the iMac.

I have tried turning off all sharing rebooting and turning it back on, no change.

Apple says, yeah it is a problem, too bad live with it, we have no method of elevating the problem to someone who can look at the logs and see what is going on.

So I have a $5K Mac Studio that is really not all that useful as the drives with my videos are on the iMac. Any ideas of what to investigate next?

I have two ghastly workarounds, have a barf bag nearby ;-)

1. use screen sharing, you can drag and drop files between the windows.
2. I am able to mount windoze file systems on both, so copy from one Mac to windoze, then copy to other Mac.

I am still digging, but haven't figure out the issue yet.

well that was a bust. The guy I spoke to was nice and he saw the problem. He then suggested I use TimeMachine to go back to 13.1. I told him, that I didn't think one can anymore but he assured me.

I booted recovery and selected a backup from Sunday that was 13.1. It then has me selected Install MacOS, but then goes right back to select which backup with a message to install MacOS again, then use Migration Assistant to get your files.

I started that, but it was obvious it was going to install 13.2.

It is true, even with a backup in TimeMachine we can no longer go backwards in a release.

I tried removing icons as well and it didn't help. I have noticed on other thing, my Mac Studio has had apps update but my iMac (intel) has the same apps, and there are no updates. It appears that intel Macs don't work well with the App Store, at least for app updates.

the plot thickness, I created an external boot drive for the Mac Studio, with a 'scratch' volume. If I put an icon on the volume smb fails. If I remove it, and stop and restart file serving it works fine.

In my previous tests, I removed the icon from a drive I was trying to mount via SMB, but left the others as shared with their icons. After I am done with setting up the external boot drive and back on to the internal drive, I will remove all drives from sharing except one that will not have an icon and see if that works.

If that does "work" it will make things a bit harder for me as I have lots of external drives with icons representing what they are for. It has made my life easier, but I suppose I should be able to get along without the icons.

I updated too soon, it works for a couple of hours, then fails as before. If I reboot the server system things work again for awhile, then fail.

Removing the icons, is not even a full workaround.

I love how apple won't allow one to go back to a previous release, they need to remove that!!!!

Still more testing and more questions with no answers yet. If I leave the icons on the drives, the SMB server on both Macs (iMac and Mac Studio) work fine from anywhere from 5 minutes to 12 hours. Then it just stops responding to requests.

After a reboot, I can mount both directions to the Macs, and the PCs. Then it just stops. If I reboot again, it might work, might be wedged. If it works it will eventually stop.

Still looking for a way to keep it going...

My Mac Studio is the SMB client, it was running 13.2 and as a client it worked fine. It could not be a server with this version. With much fear and trepidation, I updated this system to 13.2.1. It works fine as an SMB client, but any drive I try to serve, is not accessible by any SMB client system.

Bottom line: 13.2.1 does not fix the smb server issue.