I'm so sorry your post was missed, please accept my apologies I've had so much personal stuff going on atm that's it's been difficult to get on.
How's it going now? It is a common problem, but it's still irritating isn't it? Especially after you've worked so hard to get him to self settle... Wait until they realise they can stand up and can't get back down
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It will get better, give him plenty of practice time rolling during A time if you can. Once he can roll back again it tends to get easier.
Sometimes pu/pd can irritate some bubbas, have you tried ssh/pat instead? Xx