Ideally, when comparing between images, it has to be identical (or close to) as possible so with regards to your bouquets, could you use the same bouquets in both images? Whether that be the full blown custom ones you mention that you use in Vix or just few ABM created ones that you used in ATV.

Bouquets can be found in /etc/enigma2 and are files ending in .tv (or .radio) and can be copied and pasted if need be or just delete all bouquets in Vix and create just the basic ones you mentioned you used in ATV. Obviously ensure you have a backup of image.