My sync took a solid 20 minutes - i loaded the electrum wallet from a seed. The green light is now on but when i did thr transaction all it said in the bottom right corner was 'synchronizing...'
Well that's weird but I don't think there is anything to be worried about .
Since you made the transaction and you can clearly see it on the Blockchain then you could export the private keys of that address (used to receive) and import to Bitcoin Core (will need downloading the whole blockchain) or Blockchain.info and you can use the funds.