16plate Street Triple 675 R

Hi guys, Having a time of it with my striple r, replaced the fuel tank moved all the hard wear from old tank into the new tank every connecter and hose has been contacted exactly the way they should be, put half a tank of fuel in turned the key all the usual noises fuel pump going threw the motions, the bike does fire up but dies instantly ‍♂️ there’s no bars coming up on the dash so the bike thinks there’s no fuel?. av gone threw the process of elimination with everything on the bike all connectors and lines are connected correctly batteries strong practically everything on the bike is like new or replaced with new legit triumph parts. It’s very odd a tried the hole rocking the bike from side to side also pushing the bike round in a circle just so the fuel level sender can recognise the fuel. But still no go am at a loss hens the HELP mesaage lol any ideas would be sooo appreciated thanks??