My presets deleted after the last update and a suggestion to get them back was to delete the app then download it again. I did this and then obviously my photos deleted too (this also did not solve the preset issue, so that was a big mistake). I didn't think this would be an issue since I would sign back into my account and thought my photos should be saved. The photos did not come back, so I'm curious if there is a way to get them back. Thanks!
The Presets and Profiles buttons moved locations on the Edit toolbar -- Look towards the options on the left side of the Edit screen. Tap Presets, and switch from Premium to the Library tab, and scroll down until you see User Presets--your presets should be there.
Please see selondon's advice about restoring a backup -- unless you are a paid (syncing) Lightroom user, restoring a backup of your device from a time when your photos and presets were present are all we can recommend for image recovery.