I’ve just discovered that the mechanics behind DLS are likely locational. Circuits which depend on timing to work will only correctly execute a portion of the time depending on their location in the world.

I gave your file a go and it looked to count through properly for me, i didnt see any skipping on either of the counters, both viewing inside and out. gave it a few resets too but i could be misunderstanding your issue

having the same problem with an 8-Bit counter aswell. the counter counts normally for the first few times but after a while it just goes from 13 to 20 to 7 to idk what, it just turns random. i assume it happends because of the Mergers/Splitters though but could be anything else. i have also posted on here about the merger/splitter thing