I'm having some trouble with GRW too.
Some time ago, I've sent some coins from Cryptopia to my own wallet. Today I realized that my wallet was stucking on block 2475636.
Now, I downloaded the latest blockchain (http://cdn.growthco.in/grw_blk_20180505.zip), extracted it and restarted the wallet.
It seems that I'm now on the right chain but the wallet shows me no transactions anymore.
When I check transactions on https://lafuhosting.top/explorer/GRW I can see my transaction. But the client doesn't recognize the transaction anymore (calling "growthcoind listtransactions" returns an empty list), even when use a new wallet and try to import my private key to it. The private key is definitely correct because I've a backup of my previous wallet and can dump the private key from there.
Any ideas what's going wrong?