I used my phone app to transfer funds to the miner wallet that I thought I exported correctly. However, the funds are not showing up in getwalletinfo. I'm not sure what I did wrong. Wrong command perhaps? Bad export? I'm running a rescan right now, but I wouldn't have thought that necessary.

I'm not sure what info to provide other than I've been following the recommended steps above. I have at least had success with a paper wallet (bitaddress.org.html running locally from the GitHub repository (gh repo clone pointbiz/bitaddress.org)).

Since I'm here and it is partly on topic, what is the recommended usage for paper wallets? Reuse or throw away after spending all funds?