Even though I have Solo Deluxe, I'm unable to directly upload a recording longer than 15 minutes to YouTube
YouTube has it's own upload limit of 15 minutes but you should be able to upload longer recordings there once you verify your YouTube account.
This YouTube support article goes into more detail: https://support.google.com/youtube/answer/71673?hl=en
Add captions to a recording and upload to your account or to YouTube.
There are several ways to add captions to your recordings using our Video Editing tool. Add captions from a file With a video selected in the Video Editing tool, click in the bottom right of the screen. In the box for Title, enter a descriptive ...
I'm directly uploading my recording to YouTube, but can't include my Captions in the upload
The Screencast-O-Matic application allows a user to add captions as well as upload the edited video to Youtube. Unfortunately YouTube has it's own method for adding captions so it works best to use their captioning system instead. The YouTube ...
YouTube says upload is unauthorized
YouTube says upload is unauthorized If you're unable to upload to YouTube because you see the message "YouTube says upload is unauthorized", use the following steps to reactivate your YouTube account to the Screencast-O-Matic Screen Recorder app. ...
Upload to the hosting platform on Chromebook
Upload your videos from a Google Chromebook The Chromebook application allows you to upload your content to our hosting platform. If you would like to save your content online for easy sharing, uploading your recording to Screencast-O-Matic can ...
See more upload options
How to see more upload options Our screen recorder allows you to upload recordings to various services like YouTube, Vimeo, or to Screencast-O-Matic's own hosting site. In order to add these services, please see the instructions below. Add more ...