If it's a new unit, I would insist the Mfg. take care of it .
Its under the bumper to bumper new warranty right ?
Its not supposed to bubble up . It was probably not prepped right from the Mfg.
On older units, where they have been cleaned repeatedly with incorrect cleaners, I have seen them bubble due to glue separation. But, that's not the case with your camper.
I have had bubbles in rv roofs that didn't leak and didn't become worse over time, they remained the same size and didn't leak.
Here is some other comments :
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/20585839.cfm