Same issue - this appears to be related to this fix, listed in the Beta client:
https://install.appcenter.ms/orgs/rdmacios-k2vy/apps/microsoft-remote-desktop-for-mac/distribution_groups/all-users-of-microsoft-remote-desktop-for-mac
"Printer redirection has been broken when connecting from macOS Sonoma due to the removal of PostScript support. This release fixes printer redirection for connections from macOS Sonoma to Windows 10 or later."
You'll note it says Windows 10 or later - Windows 2012 R2 is the Windows 8 kernel, so this update to "fix the issue" will not support 2012 R2 nor Server 2008 R2(as neither is supported any longer.)
The only workarounds are upgrading the OS or using TSPrint(or another third-party software.)
I sincerely doubt they ever fix this.