Vibration damper BMW M20 disassembles at high speeds

Hello together, I have the problem that the vibration damper of the crankshaft dissolves into its individual parts at continuous speeds starting from 7,800 tours. They were used models of M20 injection engines. Interestingly, I have one of the E21 and that, that can stand out. Does also “Linder Motorsport” stand on it. Now the question would be, what is different about the Linder part? Does this phenomenon possibly depend on the fact that the E30 dampers I used, not together with the Crankshaft were weighed or did I simply have bad luck and the parts were age-weak? I will in any case get a new one and have it balanced together with the crankshaft. Does anyone have similar experiences? One thought was also to have the part made from solid material but it does not say without reason “damper” and whether that remains without consequences I do not know. Greeting -dodo-