As another data point, I completed 16 segments on IB from 13th to 15th March; you can read about the B2B logistics here.

• 10 segments posted today (Weds morning) - all from IB or Air Nostrum operated flights.
• 4 IB coded but I2 operated flights haven't posted - this was expected and I've retro-claimed.
• 1 BA coded but IB operated and 1 fully BA flight haven't posted - retro-claim submitted, although I could likely have just waited until next week's BA data load to RJ for these.

I have until 15th April for these to post before I start losing 2025 flights - fingers crossed!