Guys, has anyone had any issues with disappearing workers?

Like, I know I had two working on a road each, but then I checked and they were just idle. Now they apparently got included into another construction and the roads are just... building by themselves. I don't know if it's an exploitable bug or anything, but it was certainly not my intention.
The game is still in beta, so you will not by punished if you encounter and use a minor bug like this, don't worry

Anyway, when the war module and island module are finished, there will be no other module to implement, so all the developpers team will be on the game stability, for solve all the bugs encountered and make the game even more stable.