123.261 Error ModManager.cpp:1782: Error while loading entity prototype "freight-station-h-dismantling" (container): Value must be a list in property tree at ROOT.container.freight-station-h-dismantling.circuit_connector
Modifications: Freight Stations › Mining Drones 2 Remastered › Filter assistant adapted to Factorio 2.1 › Squeak Through 2

You should replace

circuit_connector = sprite_util.station_circuit_connector(tier, axis),

to

circuit_connector = { sprite_util.station_circuit_connector(tier, axis) },

in

prototypes/freight-station.lua

I did it and it works :)
Sorry :)))

Thanks for the report :) should be fixed! Just to confirm you have only hit this error on factorio 2.1?

Thanks for the report :) should be fixed! Just to confirm you have only hit this error on factorio 2.1?

Yes, last experimental build.

BTW, what difference between "Stock balancer" and underground one?

Underground can connect freight stations on the other side of the track, if you need more space or want to empty train from both sides.

Underground can connect freight stations on the other side of the track, if you need more space or want to empty train from both sides.

Oh, thanks, I didn't think of placing the containers on both sides of the railway track :)