Hiding blocks when long click or drag

I am using mit app inventer in my tablet. Me facing a problem when long click or drag a block or work space blocks are hiding what I can do

This only happening in one screen in aproject

Tell us which Screen has the problem, then Export and upload the Project .AIA file.

1st screen

(Canned Reply: ABG- Export & Upload .aia)
Export your .aia file and upload it here.