Avios catchup on FTV
We had an FTV applied to a BA holiday booking that reduced the balance to pay. The avios given from the BAH booking also reduced which seemed a bit unfair. We got the reduced avios a few days after our return as normal. The missing avios was a small amount not worth chasing up but in any event it posted this morning, 3 weeks after our return.
So if you're missing reward avios from an FTV applied to a holiday it seems they do post, but just a bit later.