I have a Logo PNG file in my media manager, which is used in a few different screens. The logo shows up fine in design mode. For some time, it also shows up fine in Browser Test mode, and in the APK mode (on device). But, after some period of working on the project (randomly) stops showing up either in the Browser Test mode, or in the APK mode on device. It still show fine on the designer.
If I delete the picture, and re-upload it, it works fine once again for a while. Then stops.
If I just re-name the picture in the media manager, and then re-assign it to the image components, it again works fine (for a while), then has the same issue.
I have shared the project with you called "Kash4me Kiosk Altair", and the project currently shows the problem. If you go to the login page, in design view, the logo is good. But if you click on Test, the logo is not seen.