It’s your ampersand in the Description.

Looks like a bug with a simple workaround!

Haha, thanks Mike. That did the trick!

Now let’s hope the product engineers see this!

Thanks Conlan for bringing this to our attention and thanks Mike for providing help!
I could reproduce the issue and take care of informing our dev team.
Regards, Luzie

Hello Skuid Community ~

This has been addressed in the new Millau 11.2.8 release which is now available on the Skuid Releases page.

As a reminder, Salesforce does NOT allow reverting back to prior versions of managed packages. Skuid always recommends installing new versions in a non-business critical sandbox environment to test all mission critical functionality before installing into a production environment. We also recommend that you update out of date themes when you upgrade.