Hello!
I noticed this had been previously reported but then apparently fixed, however I'm still finding (with 100% repro success) that when the pop-up alert tells me I have a PM, if I click to open it Chrome stops responding and I have to close Chrome with Task Manager and reload it.
I'm running Windows 10 Enterprise, updates installed to date, and Chrome version 73.0.3683.75 (Official Build) (64-bit)