Hs anyone else noticed mutli finish has gone bad in the last week or two. You can tell when mixing it doesn't quite look right and trowels up terrible. It may be coincidence but is it this time of year when they adjust retarder in the product? It almost looks abit grainy holds water so goes on nice but slides around and tears. I phoned bg and they swear nobody else has complained. Plastering is hard enough without **** product being bagged up. I've been plastering long enough to know something ain't right just by looking at it being mixed.