After Mapping a Job to Entity, if any change is done on Entity, The Entity is not refreshed and relationship breaks.
Entity mapping has to be recreated. It happens for some entities while for some it does not work. Close and restart of studio to remove caching if any also performed but no result.
Is this an issue anyone has encountered.
It depends on the version you're using. Can you please indicate which version you're using?
If cache is an issue *and* you're using 5.3.x version, you may disable cache in <jboss_dir>/bin/mdm.conf ("max_cache_size=0").