Remote Desktop Connection Manager v 2.93.1431.0 won't start; crashing with KERNELBASE.dll module

Question

I'm hoping there's an easy solution to my problem.

Attempting to run Remote Desktop Connection Manager (2.93.1431.0) under Windows 11 Pro (23H2, OS Build 22631.4751). Event viewer shows it crashing with the following:

Faulting application name: RDCMan.exe, version: 2.93.1431.0, time stamp: 0x64b56cee
Faulting module name: KERNELBASE.dll, version: 10.0.22621.4751, time stamp: 0x2db246bf
Exception code: 0xc06d007e
Fault offset: 0x000000000005fb4c
Faulting process id: 0x0x51BC
Faulting application start time: 0x0x1DB772FFD9977A4
Faulting application path: C:\Users\Joseph\Documents\Application Installers\System Utilities\RDCMan\RDCMan.exe
Faulting module path: C:\Windows\System32\KERNELBASE.dll
Report Id: 50c028f3-421e-499a-bd29-3c427d306b58
Faulting package full name: 
Faulting package-relative application ID: 

I have tried explicitly allowing the app in AVG Business Security (in case my security software was silently blocking it) but that didn't make a difference.

I have also tried running it as administrator with no change in behavior.

This was working on this specific system. I used it at least one month ago. Not sure if a Windows Update that was applied between the last time I used it and this past week may have triggered this issue or not.

The built-in Remote Desktop application works just fine. I just prefer RDCMan since I have multiple Windows systems that I need to connect to.

Thanks in advance for any help.