I have my availability window set to 12 months in advance but there is a random block on my calendar within the 12 month window. I did not set the block and the block doesn't appear to be coming from a synced calendar as I removed all of the synced calendars on Airbnb and the block still appears.
Additionally there needs to be a manual override of all unblocked and blocked dates when switching the availability window. If I manually unblock dates 24 months in advance when I switch to 12 months in advance availability window those dates need to be overriden and be blocked off.
The calendar availability window is fundamentally BROKEN!