SPISlave_T4

Hi! I am trying to use this library to have 3 teensys as slaves on an SPI bus coming out of a raspberry pi. For some reason, the Teensy keeps getting stuck when it is trying to initialize the SPI with mySPI.begin(). It seems very finnicky because I can get it to work sometimes, but most of the time it does not work. Any advice would help a ton.
Thank you.
 
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