Any video that I AI enhance goes black and white in Vegas GUI


I have an issue. My video is rendered and is in colour when I play it back, but when I drop it into Vegas 18 - it goes black and white. Very frustrating. Does anyone have any ideas what this could be? It only seems to happen on videos that have been AI enhanced.

The file name of the video (if that helps?) is: - Del Shannon Runaway_480p.SVP_1.20x_768x576_amq-12

It gets transcoded via SVP first into h264 (I have tried it as h264 AVC and H264 HEVC) - still works fine when I watch it back as a video via VLC, until I add it into the editor!

Please help, thanks!