Unable to play SQB

I recently came across an issue.
We were trying to play SQB in my squadron but it wouldn’t let us join. We waited for like 45 minutes in lobby and havent played. We’re a preety new squadron but have about 2500 points and as far as i saw, there’s a few other squadrons we could play but game just wouldn’t budge.
Any ideas why did that happen? We tried it today around 6PM GMT+1.