It tells you to produce three materials. You can't produce these three materials simultaneously, so you have to produce one by one, passing each turn when you make them consecutively.

I did that but the tutorial doesn't end, so I continued to click furiously to see how many turns it takes to crash the game, by turn #350-400 the game is very slow and unresponsive. Wanted to let you know of this bug.

I do not know what I did for this to happen, I just produced the three materials it asked for but the tutorial did not move forward.

Also the new GOG downloader crashes all the time<--an addendum.

I think that's the one where they want you to also make another 2 workers so you can produce 3 at once. They don't really say it in the tutorial but that's what I did to get through it.

The one you describe comes later.

I restarted the whole tutorial and it worked correctly this time but could not get past the Diplomacy tutorial even after setting up the trade policy, trade subsidy, an embassy and giving them all of my money. Could not get a nation be a favorite trading partner, but this time the game did not last more than 1k turns, it ended on 300 something.