I don’t know if it is just me but when i click on a bundle that was previously added to the bundles menu, it doesn’t show up, yet the functions of the bundle are working. I’m pretty sure this is what cause my problem in the previous topic, so yeah 
Leave the behavior section and go back to it. It should appear then.
Basically what is happening is the behavior bundles are being put into the object, it’s just they’re being put way out of screen, so if this happens in an object that already has behaviors in it, just search around a little bit and you should find it.
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