Pictures why I preach to slow down

Answers I’ll never know. Did the flex plate break then put stress on the adaptor bolt. Did the adaptor bolt break putting flex on the flexplate. It’s a spragless converter so did something go in the converter putting stress on both. Hmmmm. As soon as I try this converter and transmission and all is well the converter will go back for rebuild to Transmission Specialties in Pa and I will rebuild the transmission.