Groups not found after deployed to higher environment

I exported the whole app package from lower env and deployed it to higher env, but some groups were missing after deployment. I'm sure they were in lower env, and they are no new groups,  they were in higher env before deployment.

I saw conflict about the missing group, could this be the cause? But if these groups fail to import their old version should be kept right? How come I couldn't even found them in objects.

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