Skill not staying gold

[Usafsp1776]

I have been trying to keep the skill 'adjectives 1' golden by working on it everyday but without fail it is always weak the very next day. Is this normal or is there a problem?

[jayeidge]

hmm, I am having trouble keeping adjectives 1 in dutch gold. I don't know why either.

[Susana279174]

I can not even go further than part 7 in this section for Danish...