Erel, Thank you for the response. Earlier it was working fine. I mean, it supported orientation in old version.
By the way, Orientation works perfect for RunActivity page.
Meanwhile...Can u explain any other solution to support orientation as you have mentioned "with B4X pages, orientation must be locked". I mean, can i replace B4X main page with any other page? I think, this limitation (portrait or landscape) seems bottleneck for B4A.