Hi bamma
If I could clarify a couple of things:
The issue in the 2019.4 release was caused by a General Journal without a tax code and generated the error "There's no information to display" when the report opened. This issue was resolved in a later update. If I understand your post correctly you receive the error "Operation Timeout" and the report doesn't open. This indicates that it is a different issue to 2019.4.
The Timeout Extender is computer and version specific, this means that you do need to apply it to each new update if it is required. The extender wouldn't have helped with the 2019.4 issue as that was not a timeout, however, it may resolve it this time and would be worth a try.
Please do provide that diagnostic log previously requested so that I can see what is causing the report to fail. If I have misunderstood your issue please also provide a screenshot of the error you are receiving.
Also wanted to let you know that you can still work offline by backing up your file and restoring to the desktop. When you are ready to work online, back up the file and restore online.