Can't sync activity file

Nothing in that zip file.

• Zip the file, then in a reply post Insert >> Image/video/file >> click Upload >> browse for file >> OK.
• Or upload the fit file to a reputable file sharing service, such as OneDrive, Google Drive, Dropbox, make the file public, then paste a link to the file in your post.
• Or if you'd rather your activity remained private, you can send me a private message.

• drive.google.com/.../view

This will work - 2024-02-05-15-46-19-fixed.fit

I rarely see the epix (Gen 2) on here with corrupt files. I have one myself. However, you are using beta version 16.13, so I would suggest reporting this on the beta forum.

Also, as you are using the HRM-Pro Plus, I'm seeing that this is potentially corrupting the file. There are some things you should check:

• Use the HRM download feature only after an activity where it was not possible to wear the watch
• Update the HRM firmware Updating Software on the HRM-Pro/Pro Plus
• During the HRM-Pro download process keep the strap and watch in close proximity
• If issues persist even after the firmware update, contact Garmin Support
• More here about corrupted HR data: Corrupt FIT File Repair Requests

Also, since this is the 2nd time, I would sync your device then remove all activity fit files from your Garmin device using these directions - Removing Recorded Activities on a Garmin Fitness Device 

Many thanks again for sorting this.  I don't know what the problem is but a month ago I had a similar problem after doing a guided lactate threshold test as a track activity.  Yesterday I did a race using a pace pro strategy and when saving it asked of the activity was the calendar entry race and the file was corrupted,  today was a normal run and again corrupted. I backed up the watch tonight,  factory reset it,  restored it and unpaired and re-paired HRM. Watch activities are all deleted.

I'll go for a run tomorrow and if I have the same problem I'll contact Garmin support. 

Again thanks for your help.