Intriguing.
Have used the same bread maker for donkey's years, had no trouble with the latch. The mix goes in and I use the Knead/Seeds function so the seeds drop in (every time I make bread) then instead of using the breadmaker to cook the bread, it goes into the oven and comes up like a big round loaf. Works a treat. Friends used their cook function but the moment the non-stickness of the bucket starts to go, that way lies DETH because need a knife to get the cooked loaf out, and that action scrapes away a bit more non-stickness, and so on..... then you need a new bucket, and so it's off to eBay for a used one that someone was given as a present and never used.