When sharing files, recently used apps are supposed to be listed at the top, under the "recent" heading, with the rest below, under "more".
My problem is that the "recent" list includes an app (Instagram BETA) that I haven't used for at least a month (since switching to 6tag). How long do I need to wait before it's removed from the list? Or can I remove it manually somehow? Long-pressing on the apps in the list does nothing.
Update: I found that the maximum number of apps in the "recent" list is six. So after sharing to six different apps I finally managed to push Instagram off the list. However, today I found it had crept back there, even though I haven't actually used it since (and it isn't allowed to run in the background either). Does anyone have any idea as to why that's happening?