Caller image not shown during calls

REPRODUCIBILITY: More often than not
OS VERSION: 4.4.0.68
HARDWARE: 10 III
UI LANGUAGE: Polish
REGRESSION: Probably yes

DESCRIPTION:

More often than not, caller (contact) image is no longer being shown during calls in the voice call UI.
I’ve noticed it only a few days ago, and I can’t recall having experienced it earlier. Reboot seems to be fixing it for a while, but then it comes back and the contact’s image is shown only on some calls. The images (contact avatars) are there, they correctly show up in the People app in their respective contacts cards, their thumbnails are correctly shown for SMS/MMS senders, etc., they just sometimes stop being shown in the voice call UI.

PRECONDITIONS:

None.

STEPS TO REPRODUCE:

  1. Have some contacts with contact images set.
  2. Get a call from such contact.
  3. Its blurred contact picture should be shown in the background of the voice call UI.

EXPECTED RESULT:

Contact picture is shown in the voice call (phone) UI during calls for contacts which have avatar set.

ACTUAL RESULT:

For a few days, contact picture sometimes (more often than not) isn’t shown, only the OS default background in ambience colours is visible.

MODIFICATIONS:

Same happens when I boot without activating any patches, so I believe it is safe to say NONE. As for any software working, only Battery Buddy’s service in the background.

ADDITIONAL INFORMATION: