Apart from making a playlist that is exactly what I have done.
New tracks dragged and dropped into lexicon beta
Analysed and hot cues added
Full sync to Serato 4
Beat grids still out.
Okay turns out its a bug that was causing it to work on my system and probably silently failing on yours. Try again next beta update please
It does require a lexicon wipe so the beatshift data is cleared
Hi Christiaan, the latest beta has fixed the beat grid issue for me at last 
However the tracks are still being colour coded for some reason even though I am not selecting them to be colour coded.
is there anyway to stop this?
Can you upload your Lexicon database & logs? From the Help menu.
And give me a screenshot of the tracks in both Lexicon and Serato, so I know where to look
Hi Christiaan, as requested I have uploaded the log files and database and included the below message
"This is the log file from Beat 1.10.128 and the issue is MP4 files get colour coded to a turquoise colour without me asking them to whist MP3 files are not colour coded. The thread i will continue this post with is Beatgrid, Hotcue & track colour issues. I will include this text in the post. Thanks "
I’m also attaching the screenshots as requested which I’ve labelled in order in screenshot 06 the left hand deck is the MP4 file which lexicon colour coded whilst the right hand deck is an MP3 which lexicon hasn’t changed the colour of.
Thanks, this will be fixed in the next beta update.
Lovely thank you. In the current latest beta 1.10.129 when I try to find track tags and album art it fails everytime and the option of choosing which sources the data is pulled from has also disappeared.