Activities missing in Garmin Connect

Hard to say conclusively but I think something is not 100% with my device. It seems to run a self-check on each restart (when I plug the watch into USB) as a file is written in the GARMIN/EVNTLOGS folder, which contains a worrying amount of entries such as this:

timeDay:    2020/ 1/ 7 15:42:26 
cycle_cnt:  30

03* 84 02 00 00    0:00:00.600 HWM main EC00EC000000A0780120210000000000 .......x. !.....
04* A8 00 00 00    0:00:00.677 HWM main  CHKDSK Error: line:1222
05: E0 00 00 00    0:00:00.677 HWM main  CHKDSK Report: Vol:0 Time:141msec Dirs:15 Files:165543978 Free:0 Diff:65537
06: D0 00 00 00    0:00:00.678 HWM main 0000F06C0120D09E0120F06C0120C194 ...l. ... .l. ..

And:

0D: FE 01 08 00   10:06:47.282 HWM main 2020/ 1/ 7 15:37:11 V:0

0E: FF 00 00 00    0:00:00.454 HWM main 2020/ 1/ 7 15:37:18 C:29
0F* A8 00 00 00    0:00:00.546 HWM main  CHKDSK Error: line:1403
10* 84 02 00 00    0:00:00.546 HWM main E800E800000000780120210000000000 .......x. !.....
11* A8 00 00 00    0:00:00.547 HWM main  CHKDSK Error: line:1403
12* 84 02 00 00    0:00:00.547 HWM main E900E900000020780120210000000000 ...... x. !.....
13* A8 00 00 00    0:00:00.548 HWM main  CHKDSK Error: line:1403
14* 84 02 00 00    0:00:00.548 HWM main EA00EA00000040780120210000000000 ......@x. !.....
15* A8 00 00 00    0:00:00.549 HWM main  CHKDSK Error: line:1403
16* 84 02 00 00    0:00:00.549 HWM main EB00EB00000080780120210000000000 .......x. !.....
17* A8 00 00 00    0:00:00.550 HWM main  CHKDSK Error: line:1403

Not sure if that is 'normal', but I have a strong susipcion it's not.

I did a chkdsk manually from Windows as well which provided the following output:

Removing trailing folder entries from \GARMIN\NEWFILES
\GARMIN\SPORTS\0RRUN.FIT  first allocation unit is not valid. The entry will be truncated.
\GARMIN\SPORTS\2CBIKE.FIT  first allocation unit is not valid. The entry will be truncated.
\GARMIN\SPORTS\4CARDIO.FIT  first allocation unit is not valid. The entry will be truncated.
\GARMIN\SPORTS\5GENERIC.FIT  first allocation unit is not valid. The entry will be truncated.
\GARMIN\SPORTS\6WALKING.FIT  first allocation unit is not valid. The entry will be truncated.
File and folder verification is complete.
Convert lost chains to files (Y/N)? y
8192 bytes in 4 recovered files.

My best guess at the moment is some form of corrupted or damaged internal storage on the watch. Will try one more run with it before returning it for a replacement unit.

Thanks for that. It would make sense to the random nature of fault as my partners watch doesnt have issue. I see lots of other complaints of a very similar nature on-line, question is, if you can diagnose this, what cant Garmin or why cant Garmin even acknowledge its an issue and fix it? I suspect its not big enough for Garmin to care that much or some would say, its not in their interest to. My watch is out of warranty, guess they expect you to buy a new one, I wont be, they have been zero help, as this forum shows, time to change manufacturer, great shame. 

Have you contacted Garmin support?

7188018 said:

The lack of Garmin engagement or support on this forum is shocking.

This is a community user-to-user forum. We try to help eachother out when we can. However, the proper channel for support is contacting Garmin via phone, chat, or email if issues are not resolved here.

https://support.garmin.com

Thanks - tried that channel a few times, but as with modern support unless your issue is specifically adressed in the FAQ, to actually find the link or location to send a specific request too is not obvious. I have however sent a request to them now.

Further I did a run this morning with my (Vivosmart HR+) watch and the wife's dodgy Vivosport just to confirm it's not behaving, and once again the activity did not sync from the Vivosport afterwards. Steps, intensity minutes, VO2max all synced, but the activity itself didn't. I'll be returning it to the supplier shortly. 

As per previous post, i contacted Garmin support, they were unaware of issue, didnt recognise it, not come across it before, only fix was to disconnect and reconnect phone each time before activity. 

I am having the same issue with my Vivosmart 4.  The steps show up in Garmin Connect, but walks, runs do not.  I also often get sync failure messages even though the steps show up in my phone.  Sometimes restarting my phone helps.  Sometimes “forgetting” the device and pairing it again helps.  However, nothing seems to help walks or runs show up in Garmin Connect.  Another weird bug:  Steps will show up on the Dashboard page but not in the “details” page for the same day.  

I am beginning to think Garmin does not play well with iOS.  And I’m fetting really tired of constant glitches. 

It’s been happening since I got the vivosport a few years ago. It was very rare at first, then started increasing, now it’s not recording more often than it is. It’s so frustrating. I’m trying to loe weight and I feel that since of accomplishment when I can see what I’ve done. I really wanted to stay loyal to Garmin but I believe this is my last one. I’ll be looking at Apple and FitBit.

I have several issues which are very very annoying.  

1. Syncing failure with IPhone happens all the time.

2. Activity completed and showing on iPhone but not on app on IPad.

3. Entry of weight into iPhone but does not show in iPad. 

These are not addressed by Garmin.