Main app's icons overlays in Nova Prime's widgets

I've been using Nova Prime for about 5 years, which includes doing at least 10-20 settings backup-and-restore on various devices. Today I made one another (on my Motorola Moto Z2 Play / Android 8.0 Oreo) and to my extreme surprise I have noticed that all my (restored) contacts widgets have a nasty "main" app (i.e. Contacts) icon overlay over each my contact's photo. Picture worth thousand words -- before (left) sending Z2 to repair and after getting it back (right): Analysis so far: - the problem is only with Contacts; other widgets (Wikipedia and Fancy Widgets in my case) have no "main" app icon overlay, - happens on both widgets restored from Nova Prime's backup and freshly added, - happens on Motorola Moto Z2 only (i.e. does not happen on Motorola One), - happens on Motorola Moto Z2 only this time (starting from this backup restore), since I hadn't this problem for past half year, prior to sending this phone for a repair. Questions: - does anyone else experiences similar problem? - what is its source: is it caused by recent change to Contacts or Nova Prime? - is there any workaround or a way to get rid of this nasty little thing? I am adding a contact-shortcut widget by: - opening Contacts app (default app under 8.0 Oreo?), - finding given contact and tapping it to get to details, - tapping three-dot and selecting _Create shortcut_ from menu. The only difference that I noticed is that prior to this backup restore (prior to sending my Moto Z2 for a repair and getting it back) and on every other device I am getting shortcut created right after above (right after tapping _Create shortcut_). While this time and on this Moto Z2 I see some new, additional _Add to Home screen_ window, where I have to tap _Add_. I assume (given above) that the problem's source is Nova Prime, not Contacts app. I am using Motorola Moto Z2 Play (XT-1710-09) with Nova Prime 6.0 on board Android 8.0 Oreo.