Update on 12/12/2019 - these issues were resolved in Liquid Studio 2019 (v17.1.14), available from our web site:
Unresponsive Microsoft Visual Studio 2019
Microsoft Visual Studio 2019 (v16.2.2) indroduced an issue when using Liquid Studio 2019 Visual Studio Extensions
causing the Visual Studio UI to freeze and become unresponsive.
Please update Visual Studio to the latest point release to fix this issue.
Blank Tool Windows in Microsoft Visual Studio 2019
Visual Studio 2019 now supports per-monitor DPI awareness (PMA)
across the IDE. Unfortunately, a side effect of this is that some tool windows included in extensions from multiple vendors no longer work as expected and can render incorrectly or appear blank.
If you are experiencing this issue with blank Liquid Studio 2019 extension tool windows (e.g. Global Item Locator or XPath Expression Builder), uncheck the option 'Optimize rendering for screens with different pixel densities' in menu Tools->Options, setting page Environment->General.