Ah, thanks for letting me know! Glad you enjoy the game :)
I noticed the same "DEBUG TEXT" message in the top right corner right after launching a new game for the third map. I don't remember seeing it on previous levels, so perhaps it's something to do with the third map.
Speaking of which, I'm a bit stuck on the third map. A frustrating element IMHO is the need for greenery to plant beehives: trees seem to spawn at random around farmland, so you can't plan around that, and arboretums require fynbos flowers to already be present so it can turn into a bit of circular dependency.