This is a limitation of the current Blink tool. BlinkScreen is not a normal image window, in the sense that it is controlled in real time by the Blink tool. For the sake of performance, Blink does not broadcast ImageUpdated messages during animation, so other tools and even the core application have no way to know that the image transported by BlinkScreen has changed.
This can be improved in several ways. For example, once you stop Blink's animation, an ImageUpdated message could be issued to keep the rest of the platform synced with BlinkScreen. I think this can be done very easily in the next version. Thank you for pointing this out.
