I was working on some rail blueprints which had nothing to do with miniloaders. I copied a section of track and tried to build it nearby when I received an miniloader-related error message and I was sent to the main menu. I've done it several times to verify it wasn't a one-time thing.

Here are some screenshots showing the problem.

https://prnt.sc/ibao52
https://prnt.sc/ibaoc7
https://prnt.sc/ibank9

I reverted to 1.5.7 and tried to reproduce it but had no luck. Something between 1.5.7 and 1.5.9 has caused this issue.

Thank you for making this mod! I love it and have miniloaders all over my factories.

Yes, I can confirm this error. 1.5.7 version is OK but 1.5.9 have this problem.

I have the same error in Factorio v0.16.22, Miniloader v1.5.9

I get this error:
40.279 Error MainLoop.cpp:1019: Exception at tick 10945297: Error while running event miniloader::on_put_item (ID 9)
miniloader/lualib/util.lua:65: invalid direction passed to rotate_box
40.279 Error ServerMultiplayerManager.cpp:95: MultiplayerManager failed: "Error while running event miniloader::on_put_item (ID 9)
miniloader/lualib/util.lua:65: invalid direction passed to rotate_box"

Fixed in 1.5.10.

Please use the forum thread though, since I didn't see these until I'd already fixed the bug due to a forum report.

You haven't fix the bug unfortunately, i still suffer from the same error in your lastest version.

You haven't fix the bug unfortunately, i still suffer from the same error in your lastest version.

As noted in the forum thread, you were experiencing a different problem due to having an outdated version of Factorio. Thanks for the report though!