Dynomax Ultra Flow blowing packing! Need advice!!

As title states my Dynomax Ultra Flow 2-into-1 muffler blew two 4' long, very thick strands of fiberglass packing out over the weekend. I pulled all I could out obliviously and it hasnt done it again luckily. I've has the muffler installed for about 3 months. I know mufflers tend to spit some fiberglass during "break-in" but, this was thick strands and in feet. Should I be concerned? I dont think there is anyway fiberglass could get sucked back towards the engine? Primary and secondary cats are still on the truck so I would think if for any reason some got pulled towards the engine it would get stuck/burned off there? Any input is appreciated! Just very concerning to me..never seen this happen before

 

BUMP! Anyone??

 

Lol I work at a muffler shop and we stopped selling the ultra flow cause they all did that and the outlets would crack.regards to the packing it's just gonna make it louder.At are shop there a lifetime warranty on them so you should check to see you might be able to get it replaced for free

 

Well I ordered it offline and had my local exhaust guy weld it in. Since the post I haven't had anymore trouble out of it so far