Corrupted fit file for multisport with HRM Pro HR data on FR945

2025-05-18-13-30-32-broken.fit

Hi there,

I have a corrupted multisport fit file. I have never had an issue with my triathlon fit files. However, yesterday I have had a sprint triathlon with indoor pool swimming, therefore I have created a new multisport activity with indoor swimmimng as activity 1, then cycling (2) and running (3). I don't think that this is the issue, because my wife have had the same setting on her FR945 LTE as I have on my FR945. I noticed 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 running activity instead of a triathlon with two transitions. Does anyone have any advice?

Thanks in advance.

Cheers,
Marcel