this version of minecraft https://www.curseforge.com/minecraft/modpacks/all-the-mods-5

and here is a demo https://www.youtube.com/watch?v=ChT9pSdDsPY (in the begining of video)

Please use the search functionality before reporting an issue. Also take a look at the closed issues!

Issue description:

When in bucket mode tanks does not consume scooped liquid blocks.

Steps to reproduce:

1. switch tank to bucket mode
2. scoop some lava
3. profit

Version (make sure you are on the latest version before reporting):

Forge: 30.0.42
Mekanism: 1.15.1-9.9.3.394

Please don't just delete the format as it does have useful information we need in it. What version of Mekanism is this on, as I am not going to download a modpack just to see what version of Mekanism it includes, and a few alphas ago I did fix some issues about how the fluid tanks act in bucket mode.

Ok! thanx!!
I can check it only on weekend ... but it will be great.

Ya this issue is a duplicate of #5802 and got fixed in Mekanism 9.9.5.