Gb8-30 is the last glyph on side b, and with 471 glyphs there apparently is no room for Hanga Takaure:

One Tea  -  15 * 29.5 = 442.5
23
Gb8-1 Gb8-2 (443) Gb8-3 Gb8-4 Gb8-5 Gb8-29 Gb8-30 (471)
30

But in Tahua there is room enough to move on:

Hanga Takaure  -  16 * 29.5 = 472
52
Ab4-29 Ab4-30 Ab5-3 Ab5-4 Ab5-5 Ab5-6
472 26 499 500
29

The birth of something new appears in Ab4-29 (hanau). A reversed tapa mea with 7 feathers presumably tells about the moon season in the past.

The rule of the moon is ended at the beginning of Hanga Takaure:

sun Te Pei Te Pou Hua Reva Akahanga
moon Hatinga Te Kohe Roto Iri Are Tama One Tea