So, if you are uploading Media Comments and Text Comments in the "Assignment Comments" section of Speed Grader, make sure you upload each individually as two (2) separate comments. I found out that the students won't see the text if it is coupled with a media comment in the same post.
For example... I upload a screencast of grading a student's assignment, attached to the assignment itself with text above....
However, when the student goes in to Canvas to look at their assignment, all that she or he will see is:
...or...
The only workaround is to upload/publish media comments and text-only comments separately, otherwise, the media comment is all that will show.
Canvas does the same thing if I record audio or video directly via Flash.
Hi John. Thanks for the screenshots. I tried this out in my sandbox and noticed the same thing, both in Chrome and FireFox. The comments and media appear in the teacher view but a student only can see the media comment. Have you brought this to the attention of Instructure support by submitting a ticket? If not I would suggest doing so because I would imagine they may want to take a look at this.
Thanks again. This is good to keep in mind!