When using VNCScreen, the screen is not refreshing.

[xuchaoS]

I am using the following code for testing:

VNCScreen screen = VNCScreen.start("<ip>", 5900, "<password>", 3, 0);
for (int i = 0; i < 10; i++) {
    Thread.sleep(3000);
    screen.capture().save("<path>");
}
screen.stop()；

When I check the saved screenshots, I notice that the images show no changes despite switching screens during the test, which should reflect the current time.

I'm puzzled by this. I'm using Windows 11 as the client with SikuliX version 2.0.5 and Java version 17. The server is Fedora 22 with tigervnc-server version 1.6.0, and on the local machine (also Windows 11) with tigervnc-server version 1.13.1. Despite trying various configuration changes during testing, I haven't seen any differences in the results.

I also tried using the screen.getClient().refreshFramebuffer(); method, but it didn't have any effect either.

Furthermore, in my script, if I don't use the screen.stop() operation, the script does not naturally stop, and there are no error messages. Even if I include screen.click() or screen.wait() in the script followed by screen.stop(), it doesn't work; I have to forcefully stop the script execution.