Water in inside windshield channel

[Canuck2584]

Hello from Vancouver BC!
My 2014 FR3 30DS is currently in outside storage with no cover. I have water appearing in the inside windshield channel, sometimes just a little, sometimes as much as 1/2 inch. I've been checking every second day, removing it, but it keeps coming back. There is no obvious leak, nothing at the ceiling nor any water on the dash. No sign of water running down from above. I've removed the corner plastic moldings at the windshield sides - no sign of water. Could this simply be condensation? My dealer thinks so as he says many units in his yard have this issue. I've cracked open the ceiling vents to help with air circulation but that hasn't helped.
I've had leaky windshield issues before (dripping from above) but our dealer finally had a windshield shop reseat the windshield last year and that resolved the noticeable leaks.
The water is pooling in the inside windshield channel at the mid point of the windshield, yet the channel towards the corners of the windshield is dry. I've see no evidence of leaks or water running down the inside of the windshield raining or not.
Anyone else noticing this while the unit is being stored (not used) outside in rainy / cold weather. Condensation??

Cheers!!!