OP,
Its hard to clearly see your latest pics but the plaster/render should not be in contact with the solid floor - something to remember when you make good the defects is to keep the render about 50mm off the floor.
If you remove the plaster/render then please post a pic.
Its hard to clearly see your latest pics but the plaster/render should not be in contact with the solid floor - something to remember when you make good the defects is to keep the render about 50mm off the floor.
If you remove the plaster/render then please post a pic.