I've been testing with mostly low modding lately instead of full overhauls and since the base robots are abyssmally slow in Space Age, I figured I'd give this mod a try. It worked great up until the moment I researched Worker Robot Speed 6 after which the Logistic Network basically froze in place. Funnily enough, this also caused all Enemy AI to stop working entirely - except for worms. Disabling the mod immediately returns everything to working condition, even if my power grid wasn't too happy about the sudden flood of biters.

Are there any ways to debug this that would give more insight as to what's causing the problem?

Seems that researching Worker Robot Speed 7 unbreaks everything. Odd, but at least I know how to avoid it for future runs.

Thanks for the bug report, I'll check it out. But it's really strange — this mod only tweaks the base speed of robots and has nothing to do with AI or pathfinding.
Did you have other mods installed? If so, which ones?
If it happens again, you can try tweaking the mod options and setting the base speed back to the original value.

At the time I only had the Mechanicus mod (and its dependencies) active. I'll try the steps you outlined when I encounter it again.