SD Card location wrong after a full restore
I switched phones and I did a full backup and restore to move phones.
Unfortunately my SD card was not in the new phone when I did a restore. That was OK, I decided to just use internal storage at first. The app error'ed a bit complaining the SD card was not present, but again OK because I didn't have an SD card in place so obviously it'd not like that.
Now, it got interesting when I put my SD card finally. I had to format the SD card, though I'm unsure if this contributed to the problem or not as I'm not sure if that path is the automatic SD card label or something just generated by android.
Podcast addict says my storage is at the old location on the old phone: /storage/BAD3-19F1/Android/data/com.bambuna.podcastaddict/files
It complains the SD card is possibly unmounted. Oh it is there at the moment, except now it is /storage/8179-1606/(etc). So I can't select SD Card storage because it is somehow trying to use the path from my old phone?
I tried manually selecting the folder corresponding to my SD card, but that was foolish, as android doens't let you do that.
Unless the author has a better idea of how to fix this, my current plan is to do the same process over with an OPML backup and restore instead of the full one.

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Regarding the issue you need to go into Settings/Download/Storage folder and select the ‘SD card’ once more now that you inserted it. The app will then use the new SD card mounting path.
You can also restart the restore process while the SD card is mounted and select the new storage location during the restore process.