I couldn't find this anywhere already, so here I go.
Same world as with my previous bug with the berry bushes missing on the map. Found another thing; redbirds spawn in winter as if it's autumn, they even drop seeds.
The redbird is on the bottom of hte picture, and it's sitting on snow.
Steps to Reproduce
Make an RoG world, get to winter.
Make an RoG world, get to winter.
A developer has marked this issue as fixed. This means that the issue has been addressed in the current development build and will likely be in the next update.