don't blame poloniex for that error
i didn't receive my payment too at the windows wallet
the block number at gander.tech is higher the expanse.tech so the transaction is not existed at expanse.tech !!!
my transaction at gander.tech was at block 804000 and the number of blocks at expanse.tech was 801000 only !!!
and from that time i gave up expance mining and sold all i have
This only means one thing, the EXP work team does not work under fluid communication levels and most importantly they do not give guarantees to those who invest in the project