When using NX in remoteapp, the pop-up window that appears when long pressing the right button disappears immediately and the window cannot be locked

When using the software NX released by remoteapp, a pop-up window will appear when you long-press the right button. This pop-up window should disappear after releasing the right button, but in fact, it disappears immediately after it appears.

In addition, I compared Parallelsras (similar to remoteapp) and it does not have this problem. As shown in the attachment:Parallels-ras-NX.gif remoteapp-NX.gif