Currently I think Gridcoin Blockchain is splitted into a lot of pieces, I always had an estimated reward period of 1 day, now I have 3 hours! But I am not on a fork, or the gridcoin.network page is also on my fork.
Another problem i, that I've lost/not received 200GRC that I've earned prior to block 1144000. You can see it here https://www.gridcoinstats.eu/cpid/bc5a9ab4e5f6009febd0c8afec1299ed I've got one reward on 2018-01-21 and the next on 2018-01-23 with only 3.5 GRC with a magnitude of 355, that should be around 200GRC and I got that transaction for a short time and then it disappears because of a fork. Was there a problem on version change (I am using 3.7.4.0) Thanks for help!