Thanks for the information. It's always interesting to hear!

If it wasn't a horsehair worm infestation, I'm curious to hear what was causing the odd behavior.

One approach, which doesn't drastically alter the look from how it is now, is to change in factorio.min.js:
$(".custom-dropdown").hover(function() {
$(this).children("ul").stop(true, true).slideDown(300)
}, function() {
$(this).children("ul").stop(true, true).slideUp(300)
});
to this ...

No issue on my end.

EDIT:

Klonan wrote: Thu Nov 07, 2019 9:32 am Seems to only happen in 'normal' sprite resolution, high res was fine

Yep.

Not sure if it relates but I noticed a few days ago that factorio.com fails to go through ssllabs.com testing due to a "certificate name mismatch" and then "unable to obtain certificate" after clicking to proceed anyway. I've tested it, many times, in the past and it went through without a hitch ...

Does this fix also apply to this situation?

Trying out the new tooltips and the first thing i painfully notice on my 3Ghz potato is that they lag really hard. I've set tooltip delay to 0 but it feels more like 100~300ms when chaos-mousing over the crafting menu. Seems to be worst for items that i have lots of stacks in my inventory off ...

These new tooltips are excellent, and the bot batch building will make multiplayer more enjoyable. Thanks!

TL;DR
Shortcuts can't be arranged in an intuitive manner, and dragging the actual shortcuts within the UI would work far better.
Since item shortcuts are called a quickbar and not a shortcut, don't confuse those shortcuts...with shortcuts. The video shows which shortcuts I'm talking about ...

Not getting stuck on belts isn't a buff, not at all. The key is being combined with the new non-collision mechanism. It makes me wonder if it could be used to comfortably funnel aliens into a narrow and focused kill zone. A bottleneck surrounded by walls.

Are the disappearing biters/spitters just how the game works and we never notice it, or is it not supposed to happen?

The non-colliding aliens are excellent.

Please don't ever become swayed to buff/nerf/reduce the weapons/aliens/attackers in the future, as a result of this change. The way they act now is much better, and I'm a player who plays exclusively in peaceful mode. The difficulty of managing defenses is ...

So, it's just a matter of time in cases with lots of aliens?

Same save...
Should random aliens be sitting around, by themselves?
https://youtu.be/T6gXdA3_X7Y?t=625

While trying to see how the random, lonely aliens react, I noticed some disappearing. Is this normal?
https://youtu.be/T6gXdA3_X7Y?t ...

When I manually attack with artillery or wait ~10 minutes for artillery to automatically attack again, the hit/nearby aliens move, briefly, but don't attack.

There is a noticeable improvement with the new, non-collision mechanism, but others seems to just be sitting around.

Save:
https://forums ...

Attached is the requested log for missing pick axe graphics.

You can see the handle sticking up from most angles, but not all.

https://youtu.be/dUWO7zaaxQo

Oops, thanks!

Both shotguns suffer from this. The flamethrower works as expected.
https://youtu.be/hM0MEZldXfM

Side-note:
Maybe the reload sound could be executed earlier? Holding down and letting go of fire, then hearing 5 reload sounds in a row by themselves sounds off.

My normal save, which is older than the crashing save, loads without a problem. It doesn't appear to be an issue elsewhere, but I did forcibly update Windows from 1809 to 1903 yesterday.

The save which is crashing is one I wanted to see how the biters react with, as posted here:
https://forums ...

I tested in-game and it seemed like it helped, so I tried to reduce the variables and made something in map editor, and it still helped by increasing both FPS and UPS. Zoom all the way out in the attached save.

When setting core affinity to between 3 and 7 cores on Windows 10 with an i7700, each ...