iOS Content Locker 4.9
When attempting to use app extensions (document provider) to export a file, no apps are shown. This is most commonly seen while saving from Office apps in to Content Locker.
Note: This only impacts devices running iOS 11.
We have informed Apple of the issue and this article will be updated once we confirm a resolution in iOS. If you have Apple Care Support you may wish to reach out directly to Apple to learn more details around the status of this issue.