I checked 3 products: 1131284561963, 1131284332587, 1131284332587
It has been changed with only 4 field "variant_id", "inventory_item_id" and "admin_graphql_api_id", "updated_at" otherwise keeped value
I don't recevice any webhook though I registed webhook "products"
How can I know that field change, how can I test that?
Wha actions have been perfomed that changed these field values? Did you perform individual product updates or bulk updates? Via UI or API? Etc etc.
A little context goes a long way. As is, nobody can reproduce your issue and thus nobody can help.