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I have the same problem. It seems to be dependent on the amount of processor usage in the rest of the system. With several image_view windows open, half of them freeze in less than a second.

This problem appears to be present in 1.12.6 and greater. The major change was the move from using GTK to using OpenCV to display the image window. My temporary solution is to compile 1.12.5 from source.

I have the same problem. It seems to be dependent on the amount of processor usage in the rest of the system. With several image_view windows open, half of them freeze in less than a second.

This problem appears to be present in 1.12.6 and greater. The major change was the move from using GTK to using OpenCV to display the image window. My temporary solution is to compile 1.12.5 from source.

I have the same problem. It seems to be dependent on the amount of processor usage in the rest of the system. With several image_view windows open, half of them freeze in less than a second.

This problem appears to be present in 1.12.6 and greater. The major change was the move from using GTK to using OpenCV to display the image window. My temporary solution is to compile 1.12.5 from source.

Edit: Issue opened at https://github.com/ros-perception/image_pipeline/issues/101https://github.com/ros-perception/image_pipeline/issues/101
Edit: Fixed in 1.12.11