Front roof leak. Flex seal

[Dr2720]

Still having fun!!! We got a bit of rain yesterday and I did notice a small leak down the center of the front wall with the speakers over the couch (2720). I went to Walmart today and bought a can of white flex seal. Now we just noticed one of the light covers over the couch was full of water when it fell down. I sprayed the flex seal up the middle Sean on top. It's supposed to rain again tonight. Hoping I at least got that stopped until I can do a more permanent fix. Any idea where this leak may be coming from? The silicon on top looked to be in good shape. I'm thinking to flex seal all roof seams and around vent / ac. Anyone use flex seal successfully?