Can't find media player after upload

I have recently upgraded to Joomla 4 and the latest SermonSpeaker and had the same problem as others did about categories and that is fixed, but now it is not showing a player. I downloaded the Mediaplayer as I saw someone else have that need and used the Extensions Manager to upload it and it is showing, but in my options I don't show any players. Looked at other topics but not getting it somehow. Please note the pics below. I need simple instructions on getting a player on the site. Thanks so much.   
 
 
 

The new player is a regular Joomla Plugin. You may need to enable it in the Joomla plugin manager first. Also the player related options are in the plugin options.

What kind of file types are you using? Especially which kind of file extension? Maybe I need to add one to the detection code.

Hi Thomas, thanks. It is working now. I appreciate it. I am still in the experimental stage of Joomla 4 and had some settings incorrect.