the BA.com multi city trip is horrendous and seems to only show the first 5 or 6(?) flights of a given day where previously it could let you select a timeframe of the day at least. for example i needed a 1pm flight DUB-LHR but it only showed me the first flights of the day from DUB to all LON airports with the latest one being around 9am, and there was no way around this other than calling because it was also one of the days the BA APIs were not functioning between google flights and BA.com.