Linkpi Enc1v3 - No preview available in Network Stream / No Recording available from https Stream

I set up my Linkpi Enc1v3 with a Network Stream from VDONinja and no preview is available whether I encode it or not.
When I record the input stream, it is impossible to download or to play the file recorded (see screenshot).

I tried with the same VDONinja url stream to pass it through OBS then Stream it to the LinkPi via RTMP input, still no preview available but I could manage to record it and access the video when recorded.

What can I do to have a preview in all cases from a Network Stream ?
What can I do to be able to record (or to access a recording) from a VDO Ninja (https stream input) ?

Also, bonus question (Can the Linkpi be turned off without unplugging it ?)

Please try to verify that you want your features via VLC.

Consider an external disconnect switch. Thanks.

I’ll try an external switch thanks.

What do you mean by “verifying that I want features via VLC” ?
The links from VDONinja do work on browsers and like I said the RMTP Stream from it (passed through OBS) works for the recording but the preview still doesn’t work.

If anyone has any idea…