Poorly seedlings

By Professor_X in Auto Flowering,
Hi, I've got some auto seedlings seedlings on the go but one is looking rather poorly and the stems on two of them have grown wonky thanks to the heads getting stuck in Root Riot cubes. The two on the left are Gelato (Fastbuds), two grapefruit on the right. RR cubes kept most with weak solution of Formulex, under 2 bars of T5 sat on trip of propagator. Can anyone tell me what's wrong with it/them? TIA
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