Timeline audio wont stop playing once I hit "L" to speed it up.

Hi @Samuel23160386qx15  ,

Sorry for this problem again. We have improved this workflow in the latest beta build. Can you please try the latest beta build version 22.5.0.29(or higher) from the creative cloud and let us know how it goes there?

You can download the latest Premiere Pro Beta build from Creative Cloud --> Beta apps --> Premiere Pro (Beta)

https://helpx.adobe.com/x-productkb/global/creative-cloud-public-beta.html

If you still face this issue, please share your media files(& project) here and we will check at our end https://helpx.adobe.com/creative-cloud/help/share.html

I hope it will help.

Thanks,

Mayjain

Delete the Media Cache and Media Cache files:
https://community.adobe.com/t5/premiere-pro/faq-how-to-clear-your-media-cache-in-30-seconds-in-premiere-pro-2020/m-p/11017257/thread-id/260446?page=1

If that doesn't work, try resetting the preferences:
https://community.adobe.com/t5/premiere-pro/faq-how-to-reset-trash-preferences-in-premiere-pro/td-p/8236158?page=1

If that doesn't work, try resetting the Workspaces:
Reset a workspace
Reset the current workspace to return to its original, saved layout of panels.
1. Do one of the following:
• Click the Workspace menu icon and select Reset to Saved Layout.
• Choose Window > Workspace > Reset to Saved Layout.
from here:
https://helpx.adobe.com/premiere-pro/using/workspaces.html

If that doesn't work, try Preferences > Audio Hardware and set Input to None.

If that doesn't work, try creating a new project and import the old one into it.