What type of bug: Some animals (more specifically sheeps) losing their stack data (their "40x Sheep" works like a normal, coloured tag) due to some weird server change. Sheeps that spawned more recently are working right. If some admin is able to enter my island, try to shear my "13x Sheep" stack (seems that the 40x and the 13x are the only bugged stacks; there will be surely another working 40x stack due to the spawner, so you're better to look at the 13x stack). You will get its wool, but it wont destack into 12x sheeps with wool and 1 without it, but it will work like it was only 1 sheep. Server: Skyblock Arena (If possible): My island (no, it is not an arena : p) Date and time: Post's date/time Visual information(If possible): Before shearing: After shearing (I used the lead because the sheep was running away): The problem here is that I'm losing sheeps.