Expected behavior: When a HUD it attached to a point where there is already a HUD, the previous HUD dettaches and returns to Inventory. *Attaching HUD from Inventory, not in-world. Observed Behavior: When attaching a HUD object to a point where this is already a HUD object attached, the previous HUD dettaches and disappears from Inventory. It is not found in-world, or recovered through a Clear Cache. *Attaching HUD from Inventory, not in-world. I can personally reproduce this when attaching from inventory. I have not tried attaching from in-world. My exact reproduction: 1) Have a full-perm ZHAO-II (loaded with anims of various permissions) attached to bottom-right HUD point. Was attached with "Wear" from Inventory. 2) Attach any other scripted HUD object (does not need to include any anims) to the bottom-right point using "Wear" from Inventory. 3) AO HUD is detached, new HUD is attached. AO is not found in Inventory, in-world, or recovered through Clear Cache. Following the above, this bug occurs 100% of the time. DO NOT use a HUD you are not willing to lose if you attempt to reproduce this. If anyone else is experiencing this, please comment with your reproduction steps. I have heard of this also occurring with some combat HUDs, but have no further details. I've personally observed this bug in both the main Mac release, and the release candidate I'm reporting using here. Others using various Windows clients have also experienced this problem. I'd venture to say it's client- and OS- independent, and possibly server version-independent. I've personally lost HUD objects while in 2 different sims (did not gather sim data at the time). Currently, the only "fix" for this I know of is to submit a support ticket asking for an "Inventory Repair" or "Directory Repair", and hope a Linden will listen to you and do it (I've been lucky in the one I've had to do so far). While this does fix it, losing HUDs this way should never be a problem to begin with. Marked as "Critical" because people are losing thousands of L$ to this problem and there is nothing any normal resident can do about. LL needs to fix this costly problem ASAP. Please do not mark as "Contact Support". This is an issue for many people, not just me.