Yea there was a lot of forking with 3.7.4.0, however this seems to be fixed by 3.7.5.0.. You could have less difficulty staking because there are less some people still with an older wallet than 3.7 who need to upgrade to join the new wallet. Your difficulty may also be lower because the network weight just happens to be lower at the moment. Of course unless you happen to be on the fork at the moment.
If you type into gridcoin debug console do you get a hash starting with "47e48...": getblock 1146938.
If yes then you should be on the major chain. My difficulty at the moment shows 5.810 which is quite high..