Too slow ...

Do you have the setting enabled?

Settings > Interface > "Show combinatior settings in Alt-mode" ?

See 66172

I don't know how to interpret the log properly but what I understand is, that this crash is caused by the research manager due to a research being canceled.
Like in this post: 66172

Do you remember if you canceled any research as the game crashed?

Possibly related to 66172 but can be a different cause.

Same issue as in 66172

Same issue as in 66172

Seems to be the same issue as in 66172

Same as 65612
(and 66003)

Same as 65612

I can confirm this. Steam takes about twice as long than the standalone version. Times are taken after complete reboot of the system. Steam: 127.033 Factorio initialised 122.259 Factorio initialised Standalone: 61.884 Factorio initialised If the system is not rebooted, both take about the same time ...

Minor issue / suggestion. Not sure where to put this. Belt moving towards a orthogonal belt is drawn on top (how it should be). Belt moving away is also drawn on top, this is not always necessary (no items will "drop" to the other belt) and leads to Escher-like overlapping. See picture, ca...

I can confirm this. But it happens not only with multiple filtered slots of the same type, one needs just more stacks of items than filtered slots. It happends every time the game wants to put the item from the hand back into the reserved (filtered) slot but the slot was already filled again. Soluti...

In mapmode:
If you start to place rails near the player you can continue until you ran out of rails or hit unpassable ground.
You have to start at a distance where you can reach but then there are no limits.