[Closed] 27.5+ Charge Rims wont go tubeless.

27.5+ Charge Rims taped up and Stan fluid wont stay up,The Air tiny as it is is leaking from the rim welds but yet the inside of the welds have been taped up.
I have this feeling that air is getting into the rim cavity somehow and making its way to the outside weld joint.Yet it doesn't bring any fluid with it to seal.
Its a proper bizarre to me this as iv never in all the tubeless set ups done have had this.Iv contacted Charge over these rims and wont directly do anything about it so i have to go through the shop where the bike was bought.
does anyone have a solution...Thanks In advance.