Ok, the pilot that leveled up was a legendary. I had to switch out back to the epic pilot I had maxed out before getting it and it's back to normal. It just shows how unbalanced the game is if one rank means I have to fight players with 4k more sp then me. And since I'm always talking about inventory power as well, some were in the 40k to 60k inventory power, which still isn't fair either.

So I won the seeker on my second roll. I decided to put some lower weapons on it that I had so I didn't have to buy anything with credits or a-coins. So I have fragment guns 8 on it. I upgraded the weapons to 4 star level 7. Now before I upgraded them, the game was normal, but now it's back to when the pilot upgraded and I had to switch them out. I just did a match where there was only 1 real person playing on each side. The the person I was going against? Well they had a 43.18k inventory power and a 9618 sp power. I am now at a 14.98k inventory power and 5330 sp power. For the match, Battle ID: 57793378584117249

Still waiting for a response from @CrystalDrew 

And since I still have an open ticket, I will ask the support team about it as well once they respond. I don't understand how in any sane person's mind this can be balanced and fair.

This is why you should never upgrade things higher than anything else, you will get matched by just one thing of your highest stars, so if you have one maxed pilot, weapon or mech then you will be put against players with maxed things, 

You should upgrade things all at the same time, meaning keep them all at the same star levels, mech, weapons and pilots, so if they're all 5 stars then wait until you can upgrade them all together for 6 stars, if you upgrade one thing to 6 stars and leave the rest at 5 stars, you will be put against all 6 star opponents, 

This is how, the game has always worked with matchmaking 

It just boggles the mind that a game would exist and called itself balanced when you have people forced to play against other players with almost twice their power. I mean no intelligent person would set up a game like that. I have posted the battle ids so I can hear what crystaldrew has to say about this now that they can look up the exact games it happens on. Though they should already have records like this and should be able to look it up themselves.

I even went to leave some feedback on the discord server, and they shut down feedback early. What good is asking for feedback when they won't even keep it open as long as it's listed to be open?