Neilda, Sorry for the delay, I had to do the weeks shopping, a girls work is never done.
Anyway, I have had a look at my 2015 Trad and the cowl is held on by 4 fixings/bolts each side so the beading should not come loose.
I would suspect that one or more of the fastenings has either come loose or failed.
It is probably easiest to remove the grille to get a better look and fix it.
Good luck!!
