We had a leak also when we first got our trailer. Brought it back to the dealer and they did a pressure test and found many poorly chalked seams. They said one of the windows in the slide had almost no chalk on it. It took them 4 days of sealing and testing to get them all but now we have no leaks
I would suggest to bring it in and get every leak fixed or it will be major problems down the road. Unfortunately the quality of workmanship has declined over the years. Even our dealer commented it must be cheaper to have dealers fix the ones that fail then do a better job to start with.