You mean that the changed textures for wet land and also for snow don't disappear anymore?

In your two screenshots, one is showing -15 degrees, so of course the snow is not melting. The other one is still raining, so of course the ground is not getting dry. What happens if you wait some time?

I mean when raining and snowing, that is increasingly wetting and snowing but edge, square not smooth. I played without this mod, this situation was not occured.

If this mod has function that when weather is raining or snowing, ground is wetting or snowing, i think fine that makes toggle option.

I'm having the same issues as in the screenshots. I had no idea it might be from this mod. I think OP is trying to point out the harsh transitions between cell textures. The textures don't blend properly and look out of place.

I'm having this issue too and it's mostly very off-putting when playing in a snowy biome. I realize this game isn't meant to be a graphical feat but massive lines cutting across the map is uglier than yo' mama. I haven't found that any other threads on this so maybe there are very few of us having this issue ? Or do people just not mind ? Any insight would be helpful.

What may be the cause of this bug?
https://imgur.com/a/ARIUUAQ