A small observation...

['Oma Tirea]

Notably, only a single consonant should precede the pseudovowels <ll> and <rr>.  However, this seems to change when the infixes "<asy>" and "<ìsy>" are added.

For example: how would pìsylltxe divide syllabically? "pìs.yll.txe" would be illegal phonotactics, but as would "pì.syll.txe".

Another example with frrnen: fasyrrnen cannot be "fas.yrr.nen" nor "fa.syrr.nen".

Am I missing something that is not covered in NiaN or Horen leNa'vi here?

[Kemaweyan]

I think it would be pìsy.ll.txe and fasy.rr.fen

[wm.annis]

Discussed a little bit earlier: Reference Grammar discussion.  Consonant cluster before pseudo-vowel is ok.

['Oma Tirea]

I think it would be pìsy.ll.txe and fasy.rr.fen

I didn't think it would be that either, since consonant clusters cannot end syllables.

Irayo for the clarification, ma wm.annis.  I see now it is "pì.syll.txe" and "fa.syrr.nen" (NiaN only says a single consonant before pseudovowels, unlike Horen leNa'vi ).

[Kì'eyawn]

I think it would be pìsy.ll.txe and fasy.rr.fen

I didn't think it would be that either, since consonant clusters cannot end syllables.

Irayo for the clarification, ma wm.annis.  I see now it is "pì.syll.txe" and "fa.syrr.nen" (NiaN only says a single consonant before pseudovowels, unlike Horen leNa'vi ).

Keep in mind, ma 'eylan, Neo was away on holiday for some time.  He's back now, but i think the NiaN is still wanting its next update.  You might point out to him that we've had clarification of the consonant-cluster-plus-pseudovowel thing, though, as he might not know that.