BUILD: Alpha 6.6.1, 1211 GAME MODE: Survival The (ugly but effective) SV got a ""shadow copy"" of itself in the clear blue sky. Some faces are not even rendered. The "block" is inpenetrable, but also not destructible. I attached a screenshot for a better understand. Tried to upload the save game but it was not allowed so bad news for you. If you want it (17,060,297 bytes), PM me a ftp or something so I can share it. I'll keep the zapped save game until Tue EOB CEST from reply post date.