From the look of your pictures it could be excess friction.
Take the shaft out of the motor but keep it in all of the bearings on each wheel. Then spin the wheel (freely) and see how long it spins for and then post here your results
And four high speed motors with a gear ration on an x-drive will only work with robots that are no more than 7 lbs.
Which is why I originally told them to switch to torque. I wanted to see if anything else was a problem first
It is definitely a case of tripped PTCs.
4 motors high speed drive shouldnt be a problem.
So most likely there could be something that is rubbing against the wheels or shafts. And maybe something is rubbing against the foam tiles as the robot moves around.
Another thing that you might want to check - when the robot stalled, feel the cortex… is it too hot?
If it is, there could be a short ciruit some where as well.
And sometimes it could be as innocent as 2 connecting wires being bundled up too tight together, and the zip ties cut into the wires causing short circuit.
there is nothing dragging from the ground, i even changed the cortex to see if its the problem
i replaced the motors with new motors and they have no zip ties
This is a quote from Stanley from a while back. If your robot is over 20lbs it will stall/burn out on speed motors for a 4inch omni x drive
From what you posted for the wheels spinning (I got the email so I can see the text) it seems too small of a time for them to spin freely. Right now friction is what my guess is
Is it because it strafe every time? Doesn’t strafing cusses friction too?
No,
Friction is caused by the rubbing of the shaft/ whatever else you have on the shaft and what it goes through. For example a shaft rubs against bearings when it goes through them
The robot weight 15 pounds… so yea im going to use torque in this one. Thank you for your time
We just ran a competition with this configuration… And yeah, Stanleys right. Although our 21.77 pound robot only burned out twice. (first match and last match)( And yes we did lots of driving about) (You could say I drove it really carefully) 
I would not suggest it to anyone… It only lasts 3 to 4 minutes, and if you run into anything at all it will die within one minute. Also, a high speed X drive on a heavy robot isn’t actually that fast. Not to mention in drains battery quickly.
You should have no problem with a 15 pound high speed X drive though, if it’s light enough it will go like stink.
Edit: We were also using 4" wheels, which normally increase the likelihood of a stall.
We have a 16-17 pound high speed Mecanum drive with no ptc issues, and last year we had a 21 lb robot with high speed gears and 2.75 omnis.
We actually have a 4.8-1 ratio with 8 motors and 3.25 omnis and it’s actually really fun to drive haha but not many people want to put 8 motors on just the drive…