If I understand correctly then you are effectively saying that your attempts to use Jaksta Media Recorder as a media player are unsuccessful. If that is the case, then that is not unusual or unexpected.
Jaksta does not have any playback ability itself, and trying to open a video file with Jaksta as the application will result in an error notification. Jaksta will always opt to open a usable media player such as VLC or Quicktime when a file is selected to play from the internal library list. Both of these instances are normal and fits with what you experienced.
As for the issue you have of the Play and Send to iTunes buttons being greyed out, there are a couple of things you can try. First try renaming the file from the Jaksta library list by double clicking on the name text-section and then altering it in any way (just add a character or do a backspace even). Sometimes that will enable the buttons to start working.
If it that does not work then I would suggest doing a full reinstall. If there is a break in the programs processes then this should reset them.
What you will need to do is delete the app (uninstall) from Applications instead of just reinstalling over it. Then in Finder go to the top menu and then access Go > (holding one of shift/alt/control/command) Library > Application Support > Jaksta Media Recorder and delete that folder (NOTE: doing this will erase your library file list in Jaksta, but your downloaded/converted files will remain intact in their destination folders). Reboot the Mac and then do a reinstall of the latest beta version (https://download.shedworx.com/jaksta/beta/2.2.6_288/JakstaMediaRecorder.pkg) and it will generate a new copy of the deleted folder and the application files.
When you run Jaksta again you will likely notification in the top-right of the screen asking if you want to give Jaksta access to various devices and applications. Say 'Yes' to all of them and it should be properly configured to send to the new TV and Music apps that replaced iTunes.
Let me know if you continue to have any problems.
From Liam @ 14 Jan 2020 14:01