if you have 2 red cedar sapling and place one then proceed to break and pick it up the stack in your inventory becomes 3 instead of 2

Hm, doesn't happen to me. But there is a different bug with red cedar saplings that might be related and is fixed in the upcoming version. Maybe that will help.

I'll report back after the update then

Is it still happening?

i don't seem to be able to recreate it. i don't exactly remember the steps i took either though