i dont think it is a problem with openshot but with mabox , why i know this from the same versions of openshot and other linux distro’s in archlinux .
i don’t know if they are bugs but there is something wrong in mabox 21.05
and how do we know this for sure on a live usb stick with mxlinux as a test.
what is it about, well if you are now using open source video drivers or nividia drivers, then I have found something very curious under mabox, named if you are even making videos with for example openshot.
if you now make a video screen with, for example, simple screen recorder and you place the video without sound in open shot and then add sound, if you now make a record in open shot, the sound will not be edited, and there is nowhere in pulse audio an app that will record the sound, I think this is very strange, because if I take a live usb from e.g. mxlinux, so now everything live and install on the live cd of mxlinux, openshot and go to the actual harddrive ware mabox and hence I leave the same video without sound and place the audio file with it just the same in the openshot and I make the video, there is sound on the video, so in my opinion mabox and rendering the audio has a big problem , because I have already done 2 tests with 2 other linux distros and this is only in mabox, even in open source video drivers and nividia drivers no audio is recorded, and normally you don’t even have to change anything there, this is automatically correct, and that vero I am assuming that mabox has a bug or something in its distro.
if i am on the live cd from mxlinux and i install on that live with root openshot and go than to the harddrive where my video is and place it on openshot and than the audio , everythings works , and that is very strange and i bet your ass that under mxlinux everything wil work on real hardware , and what is very strange on a live usb with this time arcolinux it works two , but not on mabox linux , not on my hardware