Question:

Image files is not showing on the messaging apps, what is the problem?

Answer:

There may have various causes that make not work with showing the images on the messaging apps.

And in case of being activated the 'Messaging app protection' feature, suspected images that may have malware can be blocked to protect the phone from potential threats. So, you can check if the function is turned On in the settings.

* Path : Settings > Security and privacy > Auto Blocker (Default : Off) > Messaging app protection