Assistive Access shows blank screen

To add apps to use in Assistive Access: see if you can:

exit Assistive Access:

triple-click the Home button (on an iPad with a Home button)

or the top button (on other iPad models),

tap Exit Assistive Access,

then enter the Assistive Access passcode.

More info: How to: Exit Assistive Access if it’s active.

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Then to: "Add or remove apps for Assistive Access

1. Go to Settings  > Accessibility > Assistive Access, then tap Manage Apps.
2. Do any of the following:

• • Add an app: Tap  next to the app, then choose options for the app.
  • Remove an app: Tap  next to the app, then tap Remove.
  • Change the order of apps on the Home Screen: Touch and hold  next to an app, then move it to a new location in the list.

Important: Some features, such as app access permissions and privacy information, work differently in Assistive Access. See Understand certain differences in Assistive Access. "

Above is from:

Add, remove, and customize apps for Assistive Access on iPad - Apple Support

When you enter Assistive Access:

To see and choose from the apps you set up to use with Assistive Access: you may need to tap "Start Using Assistive Access", then enter the Assistive Access passcode.

You may want to contact the Accessibility Team for help with using this feature:

See: How to contact Apple for accessibility support - Apple Support

or

Apple's Accessibility Support Website

(NB: You can "Get Support" from the link at the bottom of their website:)

Accessibility Support - Official Apple Support

Hi HarrisLr210,

welcome to the Apple (user-to-user) Community!

Re: Assistive Access shows blank screen

Wondering if you still need to set-up Assistive Access.

Apple support have a video that may help:

How to set up Assistive Access on your Phone or iPad

https://www.youtube.com/watch?v=4O7XKZWgE3g&list=PLIl2EzNYri0cLtSlZowttih25VnSvWITu&index=1&pp=iAQB

or here's an article if that is more helpful:

How to: Set up Assistive Access on iPad - Apple Support

All the best :-)