I don't think that ice should generate if theres just flowing water, but it definitely should if it is next to a waterlogged block, especially since ice can generate on the non-waterlogged form of the same block.
Collin Parkin
I don't think that ice should generate if theres just flowing water, but it definitely should if it is next to a waterlogged block, especially since ice can generate on the non-waterlogged form of the same block.