I don't know Alex what changed in his pack, so maybe is better if the files deleted from my mod...

vinewoodbowl entrance: - tht_props and apa_ch2_04_strm_5
helipad entrance: - hei_vb_38_strm_3_f and hei_vb_38_strm_3

from \ikonprojects_base_meta

or from Alex pack (v12.8):

vinewoodbowl entrance: - apa_ch2_04_strm_5
mods\update\x64\dlcpacks\mpmapfixes\dlc.rpf\x64\levels\gta5\_hills\cityhills_02\cityhills_02_metadata.rpf

helipad entrance: - hei_vb_38_strm_3
mods\update\x64\dlcpacks\mpmapfixes\dlc.rpf\x64\levels\gta5\_cityw\venice_01\venice_metadata.rpf

The decision is Yours.