We've identified the wallet problem as a bigger problem that most likely also affects Counterparty, but it is highly unlikely that anyone has lost anything. You guys just really stress-tested it! Hang tight for news and a fix.
I know Counterwallet has had to have it's users switch (create new) wallets 2 TIMES since it was released to public. They have the process outlined on their forum: forums.counterparty.co
In one case we had to add the word "old" to the string of 12 words to access a new wallet and then migrate the funds over. In another instance we just had to import our private keys from the corrupt wallet into a newly created wallet. The assets and coins followed.
This brings up a good reminder: COPY DOWN YOUR PRIVATE KEYS FROM THE DOGEPARTY WALLET. You can always re-import them to a new wallet if you forget your passphrase... or the old wallet gets corrupted.