Navigation to Skuid page causes Salesforce log-out

Our users are having issues with Salesforce logging out every time they access a Skuid page. They’re also being asked to log in again every time they access a Skuid page from Salesforce. We use Skuid pages for data entry and are about to start a busy data entry season. This never used to happen and has only been happening in the last couple of days. For context, we have Salesforce Lightning but never enabled My Domain.

Has anyone had any luck when dealing with this issue?

I’ve seen this as well.