I'm having a problem when trying to complete the Quest "Lots o' Wadder". I cannot use a bucket of water on the task screen. Weirdly enough, it works in singleplayer but not multiplayer.

If I right-click the Task Screen with a Bucket of Water nothing happens and following error occurs on the server log:
https://pastebin.com/QvBG0HYZ

This issue is probably related to #119 but was probably fixed in 1.2.14 (I'm using 1.2.25 on both client and server). I did use a new task screen (also cheated one in), still the same issue.

Do you have access to the quest? It lets you select quests you haven't unlocked yet, but submission fails.

Yes, i do have access as i can manually submit the buckets (which is how i solved my roadblock in the questline).

I am using 1.2.26 and task screen doesnt accepting water bucket on single or multiplay, it just opens task screen settings where we set tasks etc. I tried crounching but didint worked.

I am also having this issue in single player. I found if I use the hopper that comes with the initial scren I can insert full buckets of water to add 1B at a tome, but it consumes the whole item.

I've decided to remove this chp 1 quest in 1.2.27, it seems like the mod has been changed so now you can only use pipes/automation to submit fluids