This crash happened while testing in creative mod. It also happened without creative mod. I had selected some tiles to copy them which caused the crash. I also have Dectorio which allows for tileable water. This only happens with the latest version 2.0.0.
Error
The mod Underwater Pipes (2.0.0) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event underwater-pipes::on_player_cursor_stack_changed (ID 30)
underwater-pipes/control.lua:76: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
underwater-pipes/control.lua:76: in function 'convert_blueprint'
underwater-pipes/control.lua:87: in function 'check_blueprint'
underwater-pipes/control.lua:123: in function <underwater-pipes/control.lua:121>