These are some known issues that came from the update to Minecraft 1.8.9:

• Missing models for some blocks that I want to convert from TESRs to static models (Tipi still has to wait, but is not of high priority)
• Tipi and Wind Chime items rendering wrongly in third person
• Music particles have the wrong color (won't fix for now)
• Ceremony HUD making the background of other GUIs opaque
• Cannot sleep in Tipi
• Tipi break particles are black and purple
• Cedar Leaves not respecting fast graphics
• The "+" in the "add bookmark" button in Totempedia is sometimes white
• Playing music sometimes seems to not work (might be a Forge bug)