I have a similar but different issue. This also concerns the scrimmage number.
For the past few weeks, I've been missing scrimmages thinking that no one was inviting me or that no one accepted my request. One time I clicked on the Scrimmages link to find not just my invites for the week but invites sent to me as well.
The reason is that the red number beside the link does not show on my end. At least for that one week that I checked, I have pending invites.
Can you look into this? Thanks.