OBS not picking up desktop audio


New Member
I am having trouble with getting OBS to consistently capture my desktop audio.
I record reaction videos, and sometimes it captures my desktop audio and sometimes it does not, with no changes made to the settings.
I use a Scarlett Solo interface for my headphones and made sure to have all the correct settings for Audio Capture.
This seems to happen randomly, as sometimes when I just open OBS it works but all videos after that have no desktop audio.
There have also been times when I record a video I will have desktop audio; I hit pause to comment on the video, and when I hit play there is no longer any desktop audio in the recording.
Please help, I've tried everything and I can't seem to find a permanent solution for this problem.
Here is the log file: