Hey :)
I recently added your mod. I have an issue to undo floor tiles. It was working before adding this, but with the mod it doesn't remove floor tiles that I just built (or ghost).
To be sure, I tried disabling this mod, loading my save, and the feature was back.

Please note that I tested it while using some of the concrete/refined concrete tiles from Dectorio. I don't know if it matters so I'm giving the information.
Thanks for your work !

The reason tiles don't work is because I had to completely throw out the vanilla undo system and replace it with my own, and I haven't done tile support yet. I'm a little busy with other projects currently, but I'll add that to the list, sorry I haven't gotten to it sooner :P

Oh okay, that makes complete sense don't worry.

I don't think my situation is the norm, but for me as an example it is critical, so unfortunately I have to play without Redo. So I think it's worth adding this info into the "Known Bugs" section you already have, because in my opinion this is still a difference worth noticing from default system :)

Have a good day! I'm looking forward for an updated version of your mod!

Good suggestion, I'll definitely add it to the list. Sorry you can't use the mod currently, maybe one day you won't have to :P