Profile pictures for contacts from group chats are sometimes missing on Desktop

[TJ82]

Using a supported version?

• I have searched open and closed issues for duplicates.
• I am using Signal-Desktop as provided by the Signal team, not a 3rd-party package.

Overall summary

I'm in some groups chats with contacts that I only speak in those group chats, not one-on-one. Several of them have profile pictures set, which I can see on my phone, but not on Desktop.

• I did not have these contacts in my contact list prior to joining the groups they are in.
• What I see for the affected contacts is an icon with initials.
• Refreshing contacts on Desktop doesn't help.
• It is only affecting some group members, not all.
• As far as I can tell the affected contacts appear to be the same ones across the two Desktop clients I've linked.
• I haven't observed this problem in group chats with people that I also have one-on-one conversations with.
• I'm using the Android client on my phone.

Steps to reproduce

• Join a group chat.
• Look at the group chat both on your phone and on Desktop.

Expected result

Users with a profile picture have it both on phone and Desktop.

Actual result

Some group members' profile pictures aren't shown on Desktop. Instead, an icon with their initials is shown.

Screenshots

No response

Signal version

8.5.0

Operating system

Windows 10/11

Version of Signal on your phone

8.4.1

Link to debug log

https://debuglogs.org/desktop/8.5.0/bc17a528859995aa901d4572d1ae17e7d568706bab1fb0abd055eca2eb172204.gz
https://debuglogs.org/android/8.4.1/2508bf9ecfb095d208b4c15bdda6262e331b85dc5654f980b4cb3ff265822e87