@Jofey I’m glad to hear you were able to start collecting songs again, though I can understand how disappointing it would be to see only a small portion of your collection after having hundreds of songs saved previously.
To clarify, are your downloaded songs missing from Offline Mode? Or is the issue that your songs are missing from your collection altogether (even when you aren't in Offline Mode)?
In the meantime, I've enabled a trace on your account to help us better understand what's happening.
For this trace to be useful, please run through the additional troubleshooting steps listed here: Troubleshooting for Android Devices
After completing those steps and signing back into Pandora, please leave the app open for a while to give your collection some time to fully load and sync to your new phone. On a new device, it can sometimes take a little time for all of your collected content to appear.
If your full collection still doesn't return after giving it some time to load, please let me know. I'd be happy to pass this along for further investigation.
Thanks for your patience, and sorry for the trouble!
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