Why are the Gold bars on my skill tree going down?

[Trifolium]

This question was asked about 4 months ago, and was answered. However, the link in the answer does not answer the question - it just takes you back to the skill tree.
thanks.

[Luis]

Gold bar go down when you don't practice your skills :)

[Trifolium]

Thank you!

[hintertux]

Pardon!
And when should gold bars start to go down? Because I have not trained for a while and they are still fully gold.

[J.Dave]

I'm having this problem too, @hintertux. This is confusing, as it suggests I haven't forgotten anything (when I most definitely have).

Was this problem fixed for you? Si oui, quand et comment?!

Merci!