Enchament duplication

So heres the issue, I was in the nether searching for netherite, with two other friends in a realm,

we were mining, i had two pickaxes one with Mending, Unbreaking III, Eficiency V and Fortune III, and other without Fortune but with Silk touch,

Server was laggy, and when swaped the tools, the one with silk touch has changed to be exactly like the other

I’ve sign off and in and it stay the same I dont have video when the glitch ocurred.