If it's an issue from your Facebook app, it might be a bug from their end, and not your phone.
It could also be possible that your device has not yet been properly optimized by Facebook on their end :(
However, what you can try doing is clearing your Facebook app's data and cache, essentially giving it a reset. This will log you out of your Facebook account, however! Once you reset your app, try viewing a 3D photo again and see if it works!
Thanks for reaching out to us here in order to find out what the reason behind the 3D photos not showing on your social media apps is, and we hope that we can satisfy your query.
If that doesn't fix the problem, you may submit an error report through the Samsung Members app as follows:
Step 1. Long press Samsung Members icon on Apps screen and tap Error reports.
Step 2. Tap OK on agreement popup to send system log data.
Step 3. Select Symptom category "Application".
Step 4. Describe the problem in details and SEND.
How to submit an error report on Samsung Members app? | Samsung PH
For more assistance and guidance, you may contact us via our online Samsung Customer Care support channels below.