YusufJul 11Captions show in the editor and in the preview, then vanish in the version that actually arrives. Only on images I've dragged in rather than pasted.
Support TeamJul 12Reproduced on the second try, and the drag detail is why. A dragged image goes down a different path that was never taught about the caption.
Support TeamJul 31Out in 1.6.4. Both paths now go through the same code, so there is no longer a version of an image that can lose half of itself.