Need opinions about recaulking roof

I tried going over the old stuff when I developed a leak. I just spent today removing the old and the new as the leak persisted. I think the water trapped under the old caulk was evaporating in the hot sun causing areas to not adhere correctly.
Today I removed all caulking and dried area thoroughly. Then I recaulked the area all fresh caulk. To early to tell if this will stop the leak.
While I own a MH and not a TT the principle is the same