In the past, I've suspected that accesory vertical numbers between rung numbers was related to some intermediate file generated by LDmicro, but I cann't found those numbers opening .ld nor .pl files with a text editor, nor in programs saved as .txt.
At present, for me LDmicro v.5.4.0.4 does NOT generates those accesory vertical numbers, neither the new alpha version that Ihor sent me some months ago (this alpha version can compile for ATmega1284P TQFP44 target, I'm testing it).
LDmicro v.5.4.0.4 only generates two lines prepended by 0 number after rung number, see attached no-vertical-numbers.png.
My system:
Arch Linux, kernel 5.8.5-arch1-1, LXQt DE 0.15.0, wine 5.16-1.
This change was made in the release below with explanation. Hope this is helpful
== Release 3.2.0
* Added Number of internal pseudocode operations for each rungs of ladder diagram.
It is shown below the rung number.
Added Number of MCU's oparations for each rungs of ladder diagram.
It is shown below the internal operations number.
Save as text exports its too.
You can optimise your code size and speed.