Apple App Store will not open on iPad Pro.

I just noticed a post on Reddit that said it crashes when the iPad is tilted in landscape mode but not portrait. And it’s true, which makes it even more odd. So try portrait mode. It appears to be the Today page that’s causing the crash.

Read and follow the article linked above.

Same here. IPhone works fine. Seems strange that it only seems to affect the iPad Pro. I’ve tried the suggestions in the article linked above but that didn’t help.