Missing error message in table view

[sb-relaxt-at]

When uploading a file with a wrong file extensions there is no error message. It seems as if the file has been uploaded successfully:

After reloading the page, the video vanishes.

This is the response received:

We had a mov/Quicktime file that has been renamed by a user to ".mp4" prior uploading.

Tested using silverstripe/asset-admin: 1.12.0

[maxime-rainville]

If you are uploading the file in the "Grid view". The error gets displayed in the grid directly.

However, when you are in the "table view", that scenario is not handled.