no transfer, for object containing prims with different creators

hello, simple query;

I have an object, consists of a table, and a pair of glasses on top of it.

I created the table, someone else has created the glasses. I have full copy/mod/trans/sell permissions on the glasses.

the glasses in my inventory say nothing next to them.

when I select the table, and glasses, and "take copy", next to the new item in my inventory, it says "no transfer".

why's this then? I'm confused! I had full permissions over the object, and yet combining it with items of my own creation it become no transfer?

do objects created by "unknown" default to mod/copy/no transfer ?

edit: more confusion... I'm using said glasses with a script in them. drag it out my inventory, remove the script from it's content, change the name, "take" obeject again, and it becomes no-trans! what's that about? ... very strange indeed

I've noticed some similar problems lately, with items becoming no transfer after checked that all objects and scripts inside were transferable. I'm not sure what is happening. Another SL bug I assume.

I had thought it might be a bug, but thought I'd best come check. it's very odd!

although I would assume it's something that's being set back to default settings, unintentionally.

thanks for your reply