Cannot upload videos in the newest version of wordpress

[iwonarejmus]

Hey Team,
videos .mp4 dont upload (or they do and straight after they disappear with the error: Cannot read property 'get' of undefined ). WordPress Version 5.3.2

[audrasjb]

Welcome to WordPress Core Trac @iwonarejmus and thanks for opening this ticket,

Video upload works fine on my side (see screenshot above), on a fresh WordPress install.

Could you please provide some details about your server configuration?

Also, please confirm you are experiencing the issue on a fresh install without any plugin installed and with Twenty Twenty (otherwise, you should ask in support forum as Trac is for WordPress Core development).

Cheers,
Jb

[iwonarejmus]

Thank you so much for your answer @audrasjb , I normally dont contact developers but I'm a bit in despair cause its been more than a month and I cant proceed with my work.

I just attached an image for you (above) from Edit post page, when the error occurs: “Cannot read property 'get' of undefined “. Then when I try to upload from Media Library, the error is: “Unexpected response from the server. The file may have been uploaded successfully. Check in the Media Library or reload the page. ”

Are you saying its not WordPress but a theme issue?

I reinstalled newest version of wordpress and deactivated all the plugns and changed to theme Twenty Twenty. Still the same problem.

What should I do? Downgrade in this way? (​http://dominiquej.com/how-to-downgrade-wordpress-to-previous-version/)? Or wait for new Wordpress release? About server>: its a regular wordpress installation on droplet (Digital Ocean)512 MB Memory / 20 GB Disk / FRA1 - Ubuntu 14.04.5 Thank you so much! Iwona