Hello @Curto_ John! As I understand, currently you are unable to see the “Who” field when using the “Timeline” view in Team Calendars.
After I read your question, I was able to setup a Confluence site with Team Calendars and reliably reproduce this behavior.
With such results, I created the following report:
I do encourage you to vote and watch the report. Also, please share how this affects your application usage so we can better understand the situation!
Voting for the report helps to increase the visibility given to it and watching the report will keep you up to date with everything posted there!
Let us hear from you!