Lost BPs trying to use Agile Trinket

So I lost 10 bps using Agile Trinket because I guess I had already learned it before. The trinket didn't disappear, it glowed or some such but stayed in my inventory. I passed to a second toon and they learned it and it disappeared. But the first toon who didn't get any benefit from it, lost 10 build points anyway.

Same thing happened to one of my characters.

There was a fix put in place with the October 17th update to remedy this issue, if it has happened after that patch please let me know.