My frost walker 2 boots doesn't turn water into ice

I play on my own server but 1 day I died in the nether and all my netherite stuff was in lava so I couldn't save it....

In 5 minutes all my stuff despawned and then R.I.P. to my stuff..

Then I realised that I was using elytra in the nether and my chestpiece was safe in my enderchest so I got it out and there only I had my 2nd boots which had frost walker 2 on it

I wanted to play with some ice but the when I jumped into water it didn't turn it into ice...

Then I called 1 of my friends on discord to join my server at that time and test my frost walker 2 boots on them

It didn't work for them also....

What do I do now?