DC/DC converter with LM25085A and FDC5614P is not converting voltage
It's not entirely clear what's going on, but I'd first double check the footprint of IC1 and make sure you have the pins correct.

A couple of other notes after reviewing the datasheet:
1. You are applying 12-34V to the RT pin and the application example in the datasheet shows up to 42V on that pin.  However, the absolute max on the RT pin is only 7V. You might want to reach out to TI on that one.
2. The feedback voltage is 0.9V.  Your feedback divider is configured for a 2.4V output.