#42 Synchronisating (updating) of unupdated contact items without reason

[Martin Adamek]

This may be rather strange behavior of Google than bug of Contact Sync, but this is only place where I can ask for experience of someone another, since people who do not use Go Contact Sync can not notice this problem:

It happened to me twice this week, that during synchronisation was changed about 90 contact items (I have cca 2300 contact items in total) without reason.

Result of sync is like: "Synced: 98 out ...",
and in detailed log I see tens of records like: "[10/21/2016 3:30:53 PM | Information] Updated Outlook contact from Google:"

But that contacts were not changed by me. Absolutely not (including ringtone, fast dialing preset, etc.).
I do not have new phone in this time, nor new Android application, nor new web service with rights of access to Google contacts.

I do synchronisation cca 5x to 10x per day and it happened just twice in total, and both occurencies were this week, and it was always for cca 5 % of my contacts.

By visual check of some contact items it looks that items are not damaged, but I can not be sure.
I am little affraid since I do not know what is happening and why.

It could be bug of synchronisation, or strange behavior of Google - I can not diferentiate it.
Does anyone have similar experience?