View Pager on Initilazing not showing

Hey Koders, I’m using View Pager. So when Screen Initializing I’m call pager, and I’m creating dynamic list in every tab. But the Problem is When screen Initiliazing So In First Tab dynamic list is not create but if i just go to other tab then back to the first tab Dynamic list are showing Why? Can anybody help me.
blocks - 2021-10-17T130053.309
blocks - 2021-10-17T130238.533

Copy these blocks on Screen Start.