Is there a good way to ensure adhesion to frame near charging port?

I was recently put on the task of repairing a bunch of broken iPads at work and so far the iPad 10.5s have been the biggest struggle. The primary issue I've been running into is a roughly 2 inch width region of the screen seems to not adhere to the frame above the charging port. I've been using a Prime Tech Tools mobile repair vice to apply even pressure to the screen, as well as Tesa tape and adhesion promoter. The rest of screen/frame mount points adhere brilliantly, it's just the one spot causing trouble. Any advice or a point in the direction of a guide that may address this more closely would be greatly appreciated.

N. Batson