Back Pointing needing replacing?

Hello, Not sure if I am remembering wrong or if this is true but we never had issue with damp on an interior wall until we recently had it re-plastered and now towards the skirting boards we are having some damp. It is now also on the other side of the internal wall which has had nothing done to it. So firstly is it possible for a bad plastering job to have done this? Secondly, assuming it was a bad plastering job, what can be done? I've seen lots of articles on options for rising damp but as we never had an issue until after getting plastering done I am sceptical that this is the issue. Thank you for any help possible.