Hey :)
I use a waterfill mod. I used it into the lab because I needed to test things and to include pumps into my BP. But I had to make a change, and instead of "destroying" the water tiles (it works, I tested it later), I used landfill to re-arrange my shore layout. And now, the landfill is staying on the grid, no matter what. I tried destroying it, clearing the lab, filling it with water then using the destroy tool (which as said, work on water tiles) but the landfill stays on those square. It's now part of the grid, no matter what. And always on the same spot, even when everything is cleared.
Of course, restarting game or whateever doesn't help.
Any way to force landfill to be included into the clear process?
Thanks in advance for your assistance :)
Have a good day!

It's not getting better, now I can't even delete water tiles anymore. The default deconstruction planner was acting on water tiles the day I wrote my post, but now (not a single update was done) it doesn't anymore.

Yeah, this is getting pretty annoying. I'll try to make a fix

I made a fork to fix that. https://mods.factorio.com/mod/BlueprintLab_Henriquelay