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Yes, we had similar; in our case it was that the dishwasher outlet was just running straight onto the ground, rather than into a drain.
We did get a wall treated. To be fair though, it did sufficiently address the problem for long enough. We only eventually found the cause when we pulled up the entire stone floor in replacing the kitchen - we wouldn't have found it with any reasonable level of investigatory works.
Won't stop the 'Damp proof specialist' doing it again :)