Reinforcements when switching to solid mounts?

A few months (and 12 track days) after changing to solid transmission mounts, I noticed that my transmission mounting bracket broke. I had a race shop reinforce the bracket which will solve the issue.

I also switched to solid engine mounts and am wondering if I need to reinforce anything in that area as to prevent another similar issue.

This winter, I am planning to switch to solid subframe and differential mounts; same question applies there.

I would appreciate any advice about what type of reinforcements are needed when changing to solid engine, subframe and differential mounts.

Thanks - Vikas Arya