I use "Trope Trainer" for studying my weekly parsha reading. I like it b/c I can print the pages only for one parsha instead of shlepping the entire Tikun.
I noticed that for this week's parsha, Terumah, they have two options based on where Shlishi is.
- Shlishi at Exodus 25:31
- Shlishi at Exodus 26:1
From what I can tell, option 1 wants to keep reading about the menorah together with the description of the mishkan's poles, while option 2 keeps the menorah's description together with that of the shulchan (table).
Essentially, it seems that the debate is related somewhow to the reading about the menorah. But, I don't understand what the debate is or why it's there.