IC2 Classic 2.0.9
MC 1.19.2

Also, if i close workbench gui after Save button is pressed(craftable item on cursor), items were held before also disappear.

HUH. I am not joking when i say nobody found this before.

@Speiger, i made modpack without Refined Storage and AE2(IC2 Classis is core), so industrial worktable is only one option for me.
I want Request Logistics Pipe from Logistic pipes 😒

@DmitryProskurin it isn't a full replacement FYI. It is a LOT harder then AE2/RS to get things the way they made it.
But overall yeah it should work well.

fixed