The cursor remains on my screen even when I'm in first person fullscreen

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I had a texture pack for my mouse but yeah

This things also happens in my Mac. It never happened when I’m playing Vanilla but when I playing with mods sometimes this happens. I solve it with closing and then reopening Minecraft. I’m using Modrinth. And also if you change mods/resource packs this happens but if you close and reopen Minecraft it never happens unless you change some mods, resource packs, data packs or shaders.

This happens with me, too.

Hi!
Thank you for your report!
However, this issue is Invalid.

Your game is modified.

• Any non-standard client/server/launcher build needs to be taken up with the appropriate team, not Mojang.

• Any plugin issues need to be addressed to the creator of the plugin or resource pack.

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📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki