False alarm, it appears I've done something stupid now I've started transferring everything to (permanent) pen...
I fell victim to one of the duplicates, and now I'm at a loss as to the 9th item I'm missing. I went back a few posts and saw people mentioning 5 across items, 4 down, and I have 4 of each, but nothing is jumping out and I'm now increasingly worried I've gone wrong somewhere else. Given the recent oversight with the title though, it's more likely I'm just being boneheaded at the last hurdle (again).
I've got an L, H, T and R in that order going down the rows, another letter or a row # as a push in the right direction would be much obliged so I can put this one to rest (again, hopefully finally).