Copy-paste configuration doesn't work for the standard miniloader (simply means a yellow miniloader without a filter)
But, if the player selects "split line configuration" (for the miniloader being copied) - it starts working, until the target miniloader becomes a miniloader in "split line configuration" mode and with the configuration already inserted (from another miniloader with "split line configuration" enabled).
The player needs to disable the "split line configuration" on the target miniloader to fix the "copy-paste" again.
There is something wrong with "split lane configuration" and "copy-paste" for the configuration