I made an altcoin (4,2mio - POW/POS scrypt) for teaching normal people about cryptocurrency - uploaded source and all compiled installers on git as there were some other also attending on Skype. Testing little, mined approx 600 coins via CPU and then made finally the 2h teaching with the people.
After they installed in groups the wallet, quick setup CPU-miners and were all looking happy and fascinated on their screens... 5min - 10min, but nothing happened at no computer. Nobody mined a block - after 10min I was looking in detail & saw that someone placed 800MH on our "teaching-coin"

So we have no for sending now, haha.
Probably the diff has just jumped high, and need some time for retargeting.