It looks like this:
However, if it display correctly, it will looks like this:
Category is higher than other choice. There is no problem in the 2.6.0.beta6(beta branch, not main branch), but 2.6.0.beta6(main branch) and 2.6.0.beta7(beta branch) both of them have this problem.
If you guys want to debug, welcome to my website “rfw.akarin.moe” and choose a category and then you will see the bug.