What is the wallet address that you use for this airdrop? I am unable to find the token that is causing the problem on our server from jenfteach.eth, seems like you were using a different wallet address
So I did 500 to be safe on the first round, but was able to get 650 through !!
if you want to send more airdrops than manifold allows you to do via the airdrop function… for the additional addresses you will follow manifold documentation & write to contract as proxy. Its a bit diff for multiples:
 ERC1155 so you only need to put this 1 time if they are all getting the same token number
I will upload tutorial and copy and pastable repeating 1’s this weekend!!