Plaster was multi finish from BnQ

There is an insulated water cylinder on the other side of the wall in
a cupboard

Plaster was well within the date stamp

Wall is an internal brick wall - some of the bricks have lost the
smooth oustide finish which came off removing cement there previously

The plaster was put directly onto the brick.

Today there is cracking on thinner layers put on top of the base
plaster coat as well. All carcks are quite pronounced 1-2mm wide.