Upvote:3
I don't see a issue here, the permit is valid on return and there aren't any restrictions in place that would prevent visiting Russia as a BRP Holder
Upvote:5
An application for citizenship would require your daughter to have lived in the UK for 5 years and to have had one of the following for 12 months:
https://www.gov.uk/apply-citizenship-indefinite-leave-to-remain
Since your daughter does not yet have ILR, the restrictions on that status relating to time spent outside the UK do not apply.