Ask HN: Is the AWS CloudFormation GUI console down?

Very weird question, but I can't see my CloudFormation consoles in the GUI for the past week or so. I keep getting this error in DevTools (Chrome and Firefox):

vendor.js:22 TypeError: Cannot read property 'stackSummaries' of null at render (main.js:1) at t.render (vendor.js:14) at In (vendor.js:22) at Nn (vendor.js:22) at Ln (vendor.js:22) at wr (vendor.js:22) at Cr (vendor.js:22) at zr (vendor.js:22) at Hr (vendor.js:22) at Fr (vendor.js:22)

This is us-east-1 and us-east-2 as of June 8th, 2020 6:26PM ET. AWS service indicates green for CloudFormation (N. Virginia) but I'm guessing that's API-only.

Not sure if I just have some extension or config setting off locally in both browsers, or whether it's seen everywhere.