This was the first game I have encountered this bug. I was playing as English and in the midgame I noticed that my gold was extremely low even though I have 30+ worker colleting from gold mines. When I hovered the mouse over the resource collection rate the collect rate was very high. But my actual gold never increased. I had to manually select my gold miners and force drop the gold on the mining camp in order to get some gold.
I had to repeat this process several times of force dropping gold in order to get some gold income.
This was in Quickmatch standard settings on Mountain Pass.