Page Assigment button not working at all

After spending several days trying to find a solution for this without success, we decided our only option left was to upgrade to the latest Spark 12.0.4.   Upgraded sandbox first and found the “Create New Page Assignment” and “Update Out of Date Themes” issues were both resolved.  Tested our other objects and functionality and then upgraded Production to Spark 12.0.4

Our Production org now allows to create a new Page Assignment, and the Update Out of Themes button behaves as expected.   The only issue is when updating the Themes,  the UI hangs on the last Theme Update and never finishes,  a manual browser screen refresh is needed and all Themes appear updated.   

Other than that, so far so good.    Just wanted to close the loop on this in case anyone else runs into the same problem.    Our best guess as to what caused this is possibly the upgrade to Millau 11.2.14 installation issue.

Thanks,
Ann

Ann, thank you for reporting and for taking the time to write an update. I can confirm the following: We could reproduce the behaviour in Millau and logged it as a known issue. Our development team will take care of fixing it in Millau. Furthermore, we could not reproduce the issue in the latest version of Spark (12.0.4), which is now available from the Skuid Releases page at https://www.skuid.com/releases/salesforce/.

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 We also recommend that you update out of date themes after you upgraded.