Messages app not loading/opening on Sonoma 14.5

Hi everyone - For whatever reason my Messages app will no longer open on my Macbook Pro M3 / Sonoma 14.5. Sometimes, the icon will "bounce" for a while before it just hangs; oftentimes it doesn't even do that. I need to Force Quit it every time. I've attempted many reboots and shutdowns, but that hasn't fixed anything. I've even booted into Safe Mode, and the problem also persists there. I have a similar issue with the Facetime app, but somehow that app will sometimes load (some reboots it works, and sometimes it also hangs); I haven't been able to determine how or why.

I've attempted many different other solutions I've seen associated with the Big Sur update (e.g., opening with terminal, opening "Calendar" first, holding option when opening) but nothing seems to resolve the issue.