Is that means lose all coins after each updates? I was mining at latest wallet in that time, and after update all coins are lose, usually after fork coins save at address but there is not worked, very very weird system
When you mine new block in solo, reward added to reserved wallet addresses, not to your address, if you delete wallet without send all mined coins to your address, you will lose them.
Something like this happened. When upgrading to new version of wallet, you do not need delete wallet.dat!
In order to avoid the recurrence of this situation, use dumpwallet \ importwallet command or send all mined coins to one address after mining.
Give your wallet address, i will compensate for your loss.
My current address is
GVjvWzXBZMdzyuisE84z31MGDMRhF19nHt
If you have old wallet.dat just put it back to GalaxyCash data folder.