OS: Windows 10 - 64 bit
XnView MP shows an error message when opening large (panorama) images: "Fehler beim Öffnen der Datei!" (German)
Other viewers, like the default Windows 10 image viewer, can open the image.
Effect: Error message is shown, image is not displayed.
To reproduce:
1. Open the file linked below
Actual behaviour (bug): Error message "Fehler beim Öffnen der Datei!" is shown.

Expected behaviour: No error message is shown, image is displayed.
Example file:
https://www69.zippyshare.com/v/bhz0xjHl/file.html
This image was taken with Samsung Galaxy S9+ using panorama mode (default camera app).