The display problems with Looking more closely at LDev151-TM1091 are caused by a markup oddity, which also afflicts LDev047.2-Troilus:
Both of these poems contain <note> elements as children of the <bibl> tag in the head element of the poem. However, the normal procedure is to put <note> elements as following siblings of the <bibl> element, not inside it. There are 551 instances of <note> elements appearing as following siblings to <bibl> elements inside the <head> tag, but only three instances of notes appearing inside the <bibl> tag, LDev047.2-Troilus (which contains two), and LDev151-TM1091, which has one. Since this particular structure screws up the presentation of the page, because the XSLT isn't expecting it, and since it's actually hard to rewrite the XSLT to accommodate this oddity, I've suggested to Karin that these three instances be fixed.