Error when trying to add SAML attribute statements when adding a SAAS application

I’m trying to add Rollbar as a SAAS application through Cloudflare Zero Trust.

When trying to add SAML attribute statements I run in to a strange error. I click on “Add statement”. I click in one of the boxes, either “Name” or “IdP attribute” and can type anything (or nothing) but when I click outside of that box on the screen I get an error.

“Looks like the app ran into an error.
Minified React error #31

This happens on both Firefox and Chrome.

Has anyone else experienced this or am I missing something?