I'm loading a skybox from an irr scene file, and from several PNG files. Occasionally the forth texture gets rotated 90 degrees, and written to file.
I'm unsure what can be causing this, as I'm not telling my program to write any output. The only explorer integrated applications I have are photoshop CS and 7zip.
I'm using irrlicht 1.7.1. The files needed to reproduce the error are here (3 MB).
I might have to download a program to monitor file usage to confirm if it is irrlicht, but at this moment it seems like the likely candidate.