from the descriptions in this thread, a couple questions pop into mind.

Do equipment roboports have player-avatar bound checks?
Do they start working if the player gets near while they are being sluggish?
Is Spidertron basically a remote controlled player?



The player and player-occupied ...

Ok, I uninstalled all my mods and waited for it to come around again and the engineer successfully get around the logo. It appears it is mod-induced after all.

I do have mods installed, but none that should impact the menu vignettes.

It looks like in the powersuited engineer vs. biters vignette, the engineer is hanging up on the Factorio logo on the map rather than finishing his destruction of the biter base.

It looks like picker tweaks is rearranging the priority order of color signals to lights. I was just playing with someone's unloading station with colored status indicators and they're sending both yellow and green signals to their lights when they want green. The green shows normally when I have ...

1920x1080. The whole research interface is on screen, but it simply doesn't respond at all to mouse clicks. I launch through steam, but I have the steam overlay disabled. And the fact that enabling mods changes if it works or not seems to imply it's not because of an external program.

I've encountered a rather unusual UI issue. When running an unmodded game and my game window is maximized (on Windows 10), I'm unable to click around inside the research tree to select a new research option or to browse future research possibilities. As soon as I unmaximize the window I'm able to do ...

Not a bug. Bots prefer requester chests/player requests (not certain in which order), followed by storage chests containing that item, in the order the chests are placed, followed by empty storage chests, in the order the chests were placed, followed by non-empty storage chests, in the order in ...

When creating a new game, I've noticed that the resource overrides for the various default options are mixed up a little bit. The Rubyte and Bobmonium settings under "Rich Resources" are the ones more suitable to "Rail World", Gas Well isn't modified at all on this setting. Under Rail World, Rubyte ...

Same problem here, every time I load up a save I start getting pop-ups for the achievements I've gotten previously.

Disabled all mods except this one, recipe appears. Re-enable all mods, recipe gone. Disable just "Picker Extended Version", recipe is back. Seem like that mod suppresses the recipe for this one.

UPDATE

Build upgrade planner, re-enable "Picker Extended Version" and it still works fine.


In case ...

What really surprises me is the lower throughput on the 4-lane "simple" then on the Christmas design, where they seem almost identical pathwise. I'm guessing it's simply a factor of a smaller intersection size reduces the duration of blocked paths.

With a little further work, i have 2 more variants.

First, a version with even fewer normal belts, with undergrounds added where they are an overall savings in iron usage for normal recipes (9-10 belt lengths).

http://i.imgur.com/XHmcRJ4.jpg
Blueprint: https://pastebin.com/09ex4USK

And second ...

I took ideas from the fractal balancer and the compact 16x16 balancers that have been posted, used blue belts to trim a few rows of the 32x32 crossover section, and came up with 2 versions of this:

First, a "pretty" one with as much space occupied by belts as possible.

https://i.imgur.com/HSo5Odk ...