Hi,
I received this from Microsoft team as root of my issue:
"Post investigating the issue on support instance, we have identified that the cause of the Issue is due to the customization of a view "Quick Find All Products" on Products entity.
In this view following filter condition is missed
<filter type="or" isquickfindfields="1">
<condition attribute="productnumber" operator="like" value="{0}" />
<condition attribute="name" operator="like" value="{0}" />
</filter>"
Once I added these missing lines everything was working fine.
Kind Regards,
Nikki