Is there a way to know the coordinates of where you are?
We are looking for snow and for a mesa and having zero luck. I swear I've created a world without snow. I may not complain about this come winter LOL. We've probably traveled a weeks time in several directions.
I also use the add-on, it's a game changer. Especially with linking nether portals. Found every biome apart from mesa - like you, been out many thousands of blocks in every direction, no luck. I know they are in this version of MC, have used a seed and spawned next to one... but just incredibly rare it seems.