Zoom 6.4.2 Update -- Issues with "Optimize for video sharing" and Pause screen share.

Zoom's 6.4.2 update took away functionality! These issues are happening on both Windows and Mac.

1. Before 6.4.2, when I used "Pause" button during screen share, the content shared would still be showing for participants but in a paused state. After the update, using "Pause" shows a black screen with a message "XXX has paused screen sharing". This is not productive, pause is what it is, pausing what is being shown. I am not seeing any setting to change this feature.  

2. "Optimize for video sharing" used to work fine and downsample the video. But after the update, turning on "Optimize for video sharing" does not even show the video, only audio is heard.