House attaches to avatar after opening. Detach and drop makes the house disappear. Help!

[Rolig Loon 23,147]

That's one unusual house.  How did you "open" it?  If you double clicked on it, that was a command to attach it to yourself.  If you want to rez your house, first find a place where you are allowed to rez objects and is large enough to put your house.  (A sandbox or land that you own or are renting are good choices.) Then, LEFT-click on the house in your inventory and drag it to the ground.

[Rolig Loon 23,147]

That's one unusual house.  How did you "open" it?  If you double clicked on it, that was a command to attach it to yourself.  If you want to rez your house, first find a place where you are allowed to rez objects and is large enough to put your house.  (A sandbox or land that you own or are renting are good choices.) Then, LEFT-click on the house in your inventory and drag it to the ground.

[Trix Braveheart 9]

Honest, we've all attached something to our right hand...sometimes you just can't tell

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