resize of gmap ( 4.0.1.145 )

I am updating my application with IW14.2.5 and CG 4.0.1.145 .
On this apl i have a left layout with startclosed = true , on new version when i zoom in/out Gmap is not resized correctly , it lets a blank area in place of layout. this work perfectly on v4.0.1.64.
do you have a clue of what happens ? see video http://assapan.fr/googlemap.mp4
P.S. I Moved also to Tokyo 10.2.2
On this apl i have a left layout with startclosed = true , on new version when i zoom in/out Gmap is not resized correctly , it lets a blank area in place of layout. this work perfectly on v4.0.1.64.
do you have a clue of what happens ? see video http://assapan.fr/googlemap.mp4
P.S. I Moved also to Tokyo 10.2.2