I had some IOTA I had purchased and attempted to store in cold storage. When I created the paper wallet, I accidentally used a seed with 90 characters. It looks like this created a receiving address of 90 characters as well.
About a week ago, my balance stopped showing up in the tangle explorers and I can't find my IOTA any longer. Even with the 90 character address the balance used to show up in the explorers; now it's gone. I'm assuming this may have been related to the recent upgrade.
From what I've read, if you're seed it too long, you can simply truncate it, but is there anything that can be done to recover a balance/correct receiving address from an address of more than 81 characters?