Hi @Gunn,
You are correct that the instructions should be updated, these instructions are for firmware versions less than 5.X. Although the issues your having may be related to your other post were old Insteon links remain from manual or Insteon Hub Scenes.
For 5.X firmware only one Scene needs to be created and links should be adjusted. See the highlighted scene member from the folder structure for link adjustments
The Scene Links (all buttons off, except High button. Fan High), This setup will allow UD Mobile to control the fan scene with toggle (high/off) and keep buttons synchronized. Note that Scene Member calculation for UD Mobile should be disabled for all keypad buttons:
High Links (all buttons off, except High button. Fan High):
Med Links (all buttons off, except Med button. Fan Med):
Low Links (all buttons off, except Low button. Fan Low):
Edit: I've updated our wiki with 5.x instructions
https://wiki.universal-devices.com/index.php?title=ISY994i:INSTEON_Device:FanLinc-KPL_FanLinc_KeypadLinc_Configuration
Javi's post in KeypadLinc setup for controlling FanLinc issues was marked as the answer