Rule Machine 4 Not Displaying Rule Content

For a couple of my legacy Rules, Hubitat displays a blank page instead of the rule modification information. Obviously, I’ve rebooted, but it now seems to happen all the time.

I’ve uploaded an image of the last time it displayed correctly and another showing what I get now pretty consistently when I click on the rule to edit or review it (i.e., not much!)… I’d appreciate any help!

Is this Rule-4.0 or Rule-4.1?

Also, open a Logs page, and hit refresh on the blank page. See if there is an error in the logs.