I accidentally deleted my monero wallet.
I was having trouble restoring the wallet via the GUI 12.3 using the mnemonic seed. My seed is recognised when I attempt to restore the wallet. I previously used the seed to restore my wallet successfully post the change to version 12 of the GUI.
I know approximately the time I created the wallet and have set the block height restore point 1 day prior. I have also tried setting the restore point to the start of the blockchain without success. I even tried creating the wallet on a different PC.
I have checked the settings of the GUI and the current block matches https://xmrchain.net/.
I don't really know what to do next. I am not sure where I have gone wrong. Am i correct in thinking that the mnemonic seed corresponds to a private key and would not change? Or is it possible I am using an old seed and I should have written down a new seed post the upgrade to version 12 or I could have changed this accidentally while using the wallet?
I would be very appreciative of any help that anyone could provide.