So IF they are behind, once they upgrade will all previously mined blocks that failed transfer to wallets become null and void or will they eventually be sent to the correct wallets?
Again, we cannot speak or speculate what goes on with all the many pools. You can look at the GUN block explorer to confirm that transfers with legitimate transaction IDs are occurring right now and have been for many blocks. There is a huge amount of mining activity on TBF right now and if there were issues getting coins out, that would fall to zero for sure.
It could have been the result of an orphaned or rejected block. If that is the case, you may have to wait for the 80 confirms to show it rejected and it would appear back in your account. The hashrate and difficulty are pretty high now - that might take a while.