JPEG2000 orthophoto shown as black image (Windows Surface Tablet)

[StijnClaes]

On my laptop I've prepared a project for IntraMaps Roam in which an orthophoto is used as background image. The orthophoto is a JPEG2000 image. The orthophoto is visualized correctly in the Roam Config Manager and also in Roam itself on my laptop.

When I copy all related data of this project to a Windows Surface tablet (Windows 10 Pro), all vector data is correctly visualized in both Roam as Roam config manager, but the orthophoto is returned as a black image. Opening the project in QGIS on the Windows Surface tablet visualizes the orthophoto correctly.

Does anyone have an idea why this goes wrong?

[bzeeb]

Sorry for extremely slow reply, if you are still interested can you provide a copy of the file for me to test locally?

I doubt I'll be able to easily reproduce it otherwise, not a problem I've seen before.

[StijnClaes]

You can download such a JPEG2000 file through the open data platform of the Flemish Government (unfortunately only available in Dutch): https://download.agiv.be/Producten/Detail?id=1545&title=Orthofotomozaiek_middenschalig_winteropnamen_kleur_meest_recent_Vlaanderen_2017_02

If you click "Downloaden", it opens a pop-up. To have the same file as me, you can click on "Per provincie per gemeente", subsequently choose "Antwerpen" and then "OMWRGB17VL_13035.zip (483 MB)"

[bzeeb]

Thanks, I suspect it was something to do with this particular file as I had not seen the issue with other .JP2.

Will let you know when I've tested if I find any workaround, else we'll log as a bug.