I have seen two ILF limb failures, and one bolt down go during normal use. + a couple that were overdrawn or dry fired.
The boltdown was a Horne Hunter, that developed a crack near the start of the recurve, and eventually split with no drama.
One was a Hoyt Carbon something (new abot 4-5 years ago) tha more or less exploded, and my own Border Hex V that broke with a loud crack without prior warning.
Syd said he wanted to see them, and I sent the set to Border, and got a new pair with no discussion. They still shoot like a house on fire.
Also had a Morrison riser crack, Bob sent a new one almost instantly.
K