BigSur VM cannot mount Samba shares under 6.10-rc1

I have a BigSur VM mounting two Unraid Samba shares (Music and Videos) with a passthrough Asus 10Gb nic.   Under 6.9.2, the shares mount without any issues for a couple months.  Recently, I upgraded to 6.10-rc1 but under the release candidate, the mounts hang and the VM becomes unusable until I stop exporting the shares via Unraid.  I have the shares automount upon login.

To confirm the problem is related to 6.10-rc1, I downgraded to 6.9.2 and started the VM;  Shares mounted without any problems.  I upgraded the Unraid server to 6.10-rc1 and started the VM,  problem returned;  The VM cannot mount the shares.  I've even tried to mount the shares manually but the system still hangs.

I'll compare the smb configurations later but wanted to bring this issue to the forum and see if anyone else experience a similar or same problem.