Compound Clips - Bug on Rendering

I am having a significant repeating problem whenever rendering out compound clips or the compound clip created when a timeline is dropped onto another timeline. The renders include jumping, skipping and missed frames exactly as if there was a FPS mismatch when a timeline is rendered at a different frame rate. It is a significant problem as there is no way to render the compound clips without decomposing. Interestingly, decomposing the compound clips appears to fix the problem.
The compound clips contain a wide variety of media, including fusion titles. The media within that clip may have varying frame rates if submitted from outside sources but the clips play perfectly on the original timeline and when decomposed.
Any advice would be very helpful - but the inability to use compound clips.
Thank you. Also, if there is a standard place for bug reports, please know that I did not locate it and would gladly post there -
Best,
The compound clips contain a wide variety of media, including fusion titles. The media within that clip may have varying frame rates if submitted from outside sources but the clips play perfectly on the original timeline and when decomposed.
Any advice would be very helpful - but the inability to use compound clips.
Thank you. Also, if there is a standard place for bug reports, please know that I did not locate it and would gladly post there -
Best,