Unable to fit the tube

I am unable to fit the short red tubes in on the platform. All of the other ones went in really easy, but these ones seem to be too small. Any suggestions?

My team had this issue. A few we were able to brute force. The one we couldn’t we used a heat gun on the tube for a few seconds. Slid right on. If you don’t have a heat gun, we also tried dremeling the inside of the tube a bit to get a start on it to push it on. Hope this helps.

We also had this problem- exactly the same actually. The short red tubes had a slightly smaller interior diameter than any other others. We solved it with some lithium grease and a rubber mallet. Not the best, but it worked.