The maroon material was separating from the cardboard backing on my panels. I peeled back half of the fabric at a time and sprayed both surfaces with 3-M general trim adhesive. Stuck that half back together and then did the other half.

This prevented any problems with getting things aligned again. So far, it seems like the problem is corrected. The panels still don't fit in the frames the way they should but as good as it will get.