MallocDebug invalid frame pointer messages


I’m not sure that this post belongs here - maybe in the Adavnced section of the forum.

When I run my app via MallocDebug I get this error over and over [at least once per frame].

libMallocDebug[testApp-4385]: frame pointer goes from bffff1b0 to 00429068 – assuming invalid.

I have trouble to locate the source.
Any help would be greatly appreciated.