augmented hierarchy can't remember my organisation

Hello, i like to organise my hierarchy regarding fixtures positions, from stage right to stage left.For example, in P1 i organise ch151 ch141 ch142 ch143 ch152. But i notice every time i open it again, channels randomly switch places. I don't want neither them to be sorted a-z or opposite, i want to be able to organise as i wish. Is it normal that augmented doesn't record it?

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