UPDATE: I switched playing 7855 from my computer to my iPad. Passed it on my first try, after #8, 9 and 10 dropped right down. Replayed it twice to make sure and same thing, played easily.
Apologies, I did not know it was still broken in the computer version of the game 😔
I will report this for you, but please be aware that it will not be until the working week starts on Monday that King are able to do anything.