Does Android App use ftp? Programs deleted

[StephenG1CMZ]

Earlier today I was editing a program and a message popped up about there being no ftp connection (I was in an area of poor signal). There was nothing on the pop-up to indicate who or what was being transferred. I continued editing and executing locally OK.

Does the HP Prime Android App ftp? Or was it something else?

Tonight, I typed in a new program - exiting the editor several times, but using the Android "go back" arrow rather than Shift/Off.

I just went back to type more in, and all my programs on the Android have disappeared.

Luckily, with the exception of today's programs, I have copies on the PC or in the forum.

I have 360 MB free working storage out of an original 4GB and have previously seen messages from
Google/Android that its apps cannot update due to lack of storage - but didnt see any "disk full" error from HP.