I have an app that I built to function as an asset library. I've got all of the specs for each asset stored in a SharePoint list and through the app am able to pull up all of the relevant details. A couple of weeks ago, I added a button that displays a wiring diagram stored as a .jpg in a separate SharePoint list. The diagram library list stores the diagrams in an image column and the app selects which image to display by comparing asset type and brand columns between the two lists. Everything was working as expected and it was verified after I released the update.
This morning I checked and the diagram image that I added two weeks ago is now displaying vertically instead of horizontally. I went back to the diagram library list and opened the image there and it displays horizontally. I added a new diagram to the library and it (currently) displays correctly in the library and in the app. The original image that I set this up with was also displaying correctly previously. I'm at a loss as to what is causing this so I don't have any idea where to begin to fix it.
I have not yet tried removing and re-adding the image to the diagram list. I think that might fix the orientation, but I don't want to need to do that again in the future because I didn't fix the actual issue.