Multiple ueye_cams with criss-crossed streams

@jmackay2

Wondering if anyone here has this experience...

Two ueye_cams with different device ids
Two ueye_cam nodes with two instances rqt_iamge_view connecting to each node (so they should get into streaming mode)
Both cameras connect, are in use, but both show the same image stream

This isn't a ueye_cam problem either. We observe the same effect with two launches of idscameramanager.

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