Windows10 wouldn’t Boot in GRUB Ubuntu Dual boot

I’ve Installed Ubuntu in dual boot with Windows10 and at first I had a problem with GRUB not showing at startup but I solved it with renaming files in Windows with help of this Link.

Now GRUB works at startup and shows me these options. But when I select ‘Windows Boot Manager (on /dev/sda2)’, Timer below just resets and GRUB reappers, it doesn’t let me boot into Windows.

But I can boot Windows if i select ‘Windows Boot UEFI Loader’ (Option 4 in above image).

Is there any problem here? Is this supposed to work like this? According to me it should load into Windows with windows Boot Manager but it doesn’t. What should I do?

Any help is really appreciated.