Elements issue after Big Sur upgrade

Recently upgraded to Big Sur on my iMac and have the following issue.

When I select and attempt to use any tool, pen for example, the screen goes blank as I use the tool, the action isn't visible.  This means you cannot see what you are drawing, erasing etc

Is there a solution?

Is it possible to contact Adobe? I keep following the 'contact us' link in a circle of web pages!!