- previously, export was raising an exception when this element was encountered. Breaking export or constantly re-displaying error dialog on auto-sync
- additionally, removed erro dialog popping up when exception was thrown from auto-sync - just logging the error
#jira UE-199677
[FYI] jeanluc.corenthin
#rb kerim.borchaev
[CL 34324604 by alexis matte in 5.4 branch]