i have played hundreds of mod packs over the years and this is a first for me i was playing all the mods 3 after updating it. today i came across a bug where i am unable to change the difficulty from normal. i can change it but it changes right back no matter what i do. this has never happen to me in this mod pack before or any other mod pack anyone know how to fix this

Best bet would be to choose desired difficulty and lock it. But if you would like to change it at later date you would have to go to lan mode with cheats and use /difficulty command to do that.

Known issue from Vanilla.

Not fixable from a pack level.

If we can get more info about this bug, either via issue on our tracker or other means, we can have VanillaFix fix this issue, if ATM would like to take advantage of VF at a later date.

For now, we'd still like to provide a fix for this in VanillaFix, but some more info about this would be helpful, if you can provide it please.

VanillaFix, at this stage (and for the foreseeable) isn't something we would look to add to the pack, but by all means try to fix this issue.

We will definitely look into fixing this for other players, but just out of curiousity, is there any particular reason you wouldn't want to use it in ATM @Boomflex? While I can understand that we are still very much in a beta phase and have stuff we need to work on and fix (trust me, we work hard to fix any and all issues that arise pretty quick), but there are some very helpful features that I think could be handy for a large modpack, such as yours.

We are always open to criticism and want to hear other people's feedback on the mod

We have had numerous Dev friends of ours look in to the mod itself and currently it is not in our plan to include after chatting with them.

I think it has massive potential and it is 100% on our radar, just not yet.

It is just too Beta for us at the minute.

Im curious, in the mod description you say up to 3x FPS increase in large modpacks, have you seen proof of this?

Performance improvements:
Tick only visible animated textures (huge FPS increase, up to 3x on very large modpacks)
Make interdimensional teleportation over 10x faster

@Boomflex Understandable. We are trying our hardest to make it stable enough for everyone to use and enjoy without any major issues.

@Blueletric I'm not saying this as a shameless advertising thing, but I'd recommend just dropping it into ATM3 as a test to see proof. I think we actually did testing with ATM3 to prove that it was so much faster with it included. But like Boomflex said, it won't be included for probably quite some time while we fix any major things on our end and "mature" a little bit, but it doesn't affect anything major so you can remove it without any issues after testing it, should you so choose.