How to debug a custom file type?

Hi everyone.

I created a custom file format for midi files for my custom plugin. It works fine. But for the last couple of days, I can’t read the data and populate the sequencer after I save it and close the editor. Why would it be doing that?

(I created a custom sequencer track that I created that triggers events according to midi events)

uasset file size seems to be correct.
How can I debug the content of the uasset file?