Right click not working in Java Application (PDF Studio

When I right-click in Microsoft OneNote for Mac 10.13.6 High Sierra, right-click works as expected, but when I try the same macro in PDF Studio, a Java application, there is no reaction, nor is there any reaction if I send Control+Shift with a left-click. If, on the other hand, I manually right-click or press Shift+Control click, the right-click menu works. Apparently this is the same problem as this thread: Emulating “Right-click” or “Control-click” in Java-based apps Thoughts?

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