I found a solution on my B15Q even without root:
- Uninstall Oruxmaps
- create manualy the folder:"/Android/data/com.orux.oruxmaps" on your SD card
- reinstall a new version of Oruxmaps.
The reason is that Catapilar messed it up and made the kitkat issue even worse: Apps cannot cerate their designated folder on the SD-card. But they can modify the rights.
see also:
Regards Luke