Hi Lukas, in that case we recommend upgrading Skuid in a Sandbox to the latest version (12.4.12)
Best practices for upgrading can be found in Upgrading Skuid on 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 We also recommend that you update out of date Themes after you upgrade. Please let us know if you continue to encounter problems with this issue after upgrading.
