TheoTown

Fragment shader precision

It uses pixels from neighboring frames, so these are probably from another plugin.

That's the main problem with precision issues. It's difficult to predict when or why it happens. In any case zooming in increases the probability that a pixels fetches the right color.

The fix is easy but needs more texture space: Add a transparent border to any image you provide. I could do that automatically for any plugins, let's see.

About the car count, I suspect you overload something if you want to spawn 100 cars immediately.

Increase capacity.

Per day at max one of your cars will be spawned. That might be a problem if no way is found or cars are disappearing more often than they spawn. Normally, no of your cars should disappear, but it happens if no way is found.