Question 2D project recording error

Hi,

I am new to Unity and trying to record a 2D video with Recorder but I get "VideoMediaEncoder::Create got unsupported format." and "MovieRecorder unable to create MovieEncoder. MediaEncoder".

OS: Ubuntu 20.04
Unity Editor: 2020.3.30f1
Recorder: 2.5.7

To reproduce, create an empty 2d project and install the recorder and hit record a movie with game view or targeted camera. I tried a few default settings and I get the same results. (See the attached image.)

I saw https://forum.unity.com/threads/uni...-i-installed-universal-rp-2d-project.1107581/ and https://forum.unity.com/threads/uni...nt-work-with-urp-render-type-overlay.1245274/ but I am not using URP (am I??)

Can someone help me out?

Thank you!

The below are full errors:
UnityEditor.Media.MediaEncoder:.ctor (string,UnityEditor.Media.VideoTrackAttributes,UnityEditor.Media.AudioTrackAttributes[])
Unity.Media.CoreMediaEncoder:Construct (string,UnityEditor.Media.VideoTrackAttributes,UnityEditor.Media.AudioTrackAttributes[]) (at Library/PackageCache/com.unity.recorder@2.5.7/Editor/Encoding/CoreMediaEncoder.cs:138)
Unity.Media.CoreMediaEncoder:Construct (string,UnityEditor.Media.VideoTrackAttributes,UnityEditor.Media.AudioTrackAttributes) (at Library/PackageCache/com.unity.recorder@2.5.7/Editor/Encoding/CoreMediaEncoder.cs:124)
Unity.Media.CoreMediaEncoder:Construct (string,System.Collections.Generic.List`1<Unity.Media.IMediaEncoderAttribute>) (at Library/PackageCache/com.unity.recorder@2.5.7/Editor/Encoding/CoreMediaEncoder.cs:113)
Unity.Media.MediaEncoderManager:Construct (Unity.Media.MediaEncoderHandle,string,System.Collections.Generic.List`1<Unity.Media.IMediaEncoderAttribute>) (at Library/PackageCache/com.unity.recorder@2.5.7/Editor/Encoding/MediaEncoder.cs:370)
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()

MovieRecorder unable to create MovieEncoder. MediaEncoder: Output file creation failed for /home/dokook/development/cartoon/My project/Recordings/movie_002.mp4
UnityEditor.EditorApplication:Internal_CallUpdateFunctions () (at /home/bokken/buildslave/unity/build/Editor/Mono/EditorApplication.cs:327)