Factorio Forums

Continuation of https://forums.factorio.com/forum/vie ... 11&t=16028 as it was not fixed with 0.12.7

Same deal, desync within a random range of seconds.
updated evogui and yuoki since then, no go.
Also still downloading at about 15 kb/s.

Mods:
https://www.dropbox.com/sh/3oetqj0q2dik ... gA4Ua?dl=0

Save:
https://www.dropbox.com/s/kpusxyv9ccb4j4q/12.zip?dl=0

Desync report:
https://www.dropbox.com/sh/a90dmdvsj963 ... mbPba?dl=0

Client Log:
https://www.dropbox.com/s/ltncsa5d81odd ... t.log?dl=0

Server Log:
https://www.dropbox.com/s/d7gc67ok2ulq6 ... r.log?dl=0

Some further testing revealed the problem to be with my (Berserker55/fabian)'s inventory. As soon as a drone inserts something into it, or an item is put to or from the hotbar, the desync occurs.

Edit: after putting all things yuoki into a chest, then using that save on the server, it seems to work so far.

Berserker55 wrote:Some further testing revealed the problem to be with my (Berserker55/fabian)'s inventory. As soon as a drone inserts something into it, or an item is put to or from the hotbar, the desync occurs.

Edit: after putting all things yuoki into a chest, then using that save on the server, it seems to work so far.

If you want you can do quite simple test.
When playing with youki's item in question take a look at inventory when doing various actions with it. If you see items in it reshuffle it means that sorting is not deterministic and will cause desyncs potentially.

That is definitely happening. Yuoki items have been reshuffling a lot. But when playing windows<->windows it's fine, so we never cared much.

Yes, inventory sorting determinism related problems are only appearing when playing cross platform.

Will that be fixed short term?

Berserker55 wrote:Will that be fixed short term?

Most probably yes.

I was able to minimize the problem into test case with 2 items, so I'm going to investigate it to day. I guess it will be fixed to day, so it only depends when 0.12.8 will come, but probably this week.

It is fixed for 0.12.8

(The problem was error in the item stack comparator. It didn't work properly when to item groups had the same order string.)