Issuess saving files in newly installed SDL Trados Studio 2019 Professional SR2 - 15.2.0.1041

Hi Community,

Now that I am working with Studio 2019 Professional  and new GroupShare, saving files takes much longer because every time I click on the save icon (disk) the message appears "Please Wait - Uploading File. 

This message is also window were the dreaded "Generating Preview" always appears. Why is this happening and to what purpose? It incrementally delays my translating progress.

What to do?

Thanks,

Deborah