Whenever i add video FX it adds blue/invert effect to the video even on video transitions, when i add two of the same effect or transition it turns back normal
I am having the same issue, I am running Vegas Pro 17 and it does this for multiple plugins, such as NeatVideo noise reduction 4.8.7 and the Digitial Anarchy FlickerFree plugin. When I apply the plugin it doesn't do anything, its only when I activate the plugin, so for NeatVideo I apply the plugin, calibrate the noise level on the video, have it generate the noisemap, and as soon as it applies the noise reduction effect, the entire screen takes on a vibrant blue tint as if its been heavily color corrected, so there is no way to use the plugin without destroying the video.
I have emailed NeatVideo support and they said its an issue with Vegas and I should be directed here.