Where is this damp coming from? (with pics)

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We have a slight damp problem. Years ago cracks in the render were fixed and also a downpipe diverted as we thought that we may have rising damp from the wall near the flower bed. Now the damp is back and we can't find the cause.
Inside picture shows the effect on the inside of the house (note the walls are solid not cavity). I've marked on the outside picture a cross to mark the spot that is the centre of the damp is showing inside. The down pipe is solid and clear.


Inside picture shows the effect on the inside of the house (note the walls are solid not cavity). I've marked on the outside picture a cross to mark the spot that is the centre of the damp is showing inside. The down pipe is solid and clear.



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Did you add the fillet of cement between the brick paving and the wall? I'd guess this was done with good intentions but is (arguably!) more likely to encourage damp than help remove it.
The render and the first line of bricks sit proud of the remaining bricks, I think this is called oversailing. So the wire is underneath the highest brick row.
I think the plaster inside is solid - it’s a solid wall so no cavity. Wires go all over the place, I should probably remove redundant ones, but I’m always nervous that they do serve some purpose.
that tape was some sort of sealant I think, it isn’t holding any wires.
The bottom picture shows some cemented holes near ground level on the left hand side, I’m guessing that is a dpc, that someone put in at some point in the past. Solid floors inside, solid walls, so no air gaps anywhere.
These damp treatments are often nt that great and do break down. IMO its a combination of poor dampproof work and possibly a bit of repair outside
OP, FYI, I am no expert in this areas but vast knowledge of owning, looking after our properties, doing them up, helping the kids etc have given some ideas and times these ideas do help me and my family/friends et.
Thanks