Posts' Profile Picture issues

Every post on the feed has the Anonymous profile picture, even the ones that have the username displayed, but then also every few posts there is one post that is displayed as having the same poster, except when I click in to the comment section it starts displaying normally

**To Reproduce**
Steps to reproduce the behavior:
Let's use blue christmas tree as our user. There will be posts dispersed every few posts that are shown as blue Christmas tree with no username and ONLY blue Christmas tree. So now the feed shows only anonymous poster pfps with blue Christmas trees every now and then.

1. Click comment section of a post with blue christmas tree pfp and no username
2. It now shows that an anonymous user posted that comment with their identifiers turned off

The 2nd part of this issue is that if a user posts with their identifying information on, then the feed will show a anonymous pfp regardless.

1. You see a post that has the Anonymous fyp but also a username attached
2. Click into the comment section, the profile picture of that user and their username is showing properly

**Screenshots**
If needed, add screenshots to help explain your problem.

**Smartphone (please complete the following information):**
- Device: Samsung galaxy S24
- Android version: 15
- App version: 0.9.4

Start by reproducing the issue on a Samsung Galaxy S24 running Android 15 with app version 0.9.4, following the feed and comment-section steps for both identified and anonymous posts. Compare the profile picture and username shown in the feed with the comment section; done means both views consistently show the correct poster information.

Written by the indexing model from the issue text.