Hi Thomas,
what is the SAP_BASIS version you are using with the 721 EXT Kernel where you are editing the ITSMobile templates? Will also need the exact Kernel patch.
Could be a bug here.
Search for notes with the term: "ITSmobile" and "Visual" and "Editor"
See for example note:
1818662 - ITSmobile Visual Editor: Improvements and corrections
Notes will either be in the component:
BC-FES-ITS
or
BC-DWB-TOO-WAB
Regards,
Oisin