Using Adobe InDesign CC up-to-date on a PC running Windows 10.

1. Ungrouped group of text boxes + image boxes.
2. All text in boxes disappeared but outlines remained. However in the layers you could see that they were deleted.

Strangely enough, by deleting a different hidden layer, I could ungroup the group and they would not be deleted.

Definitely the weirdest InDesign bug I've seen to date.

Any help would be appreciated!!