Problem when RegisteringForBytes with BluetoothLE1

This block worked yesterday but now when I enable the block RegisterForBytes passed global UUID_MAX17048 the Ai Companion crashes after selecting the device. i.e. the first 2 RegisterForBytes work but none of the other with the AI Companion. As this didn't produce the same problem yesterday I am at a loss why unblocking any of the bottom 3 blocks should cause a problem