Corrupted fit file for multisport with HRM Pro HR data

I have a corrupted multisport fit file. I see that this appears to be a relatively common problem with external HR data. I'm having trouble figuring out how to fix it with Fit File Repair Tool, as the whole thing is being read as a cycling activity instead of a triathlon with two transitions. Does anyone have any advice?

Thanks in advance2025-05-18-08-02-46-broken.fit