I'm afraid I did not update my wallet and appear to be on a fork. I purchased coins in 2018/2019 and am on wallet 2.1.2. I can see the block height does not match the explorer.
With this version of wallet, I can see all my coins. When updating to 2.2.0 or 2.2.2, all coins are missing. I've attempted to re-sync a couple times, and all coins are missing.
Is there any way to recover these old coins, or are they gone forever?
Thank you
If you didn't move the coins they are still on your address on the heading chain, no worries about that. The best would be to export the private keys from your old wallet and import them on the new.
A situation where you really could "lose" coins is, where you buy coins on a forked chain. In this case the transaction of your new purchased coins never happened on the heading main chain.