It is similar situation with EURUSD H4 Ichimoku.
ichimokuh4_0306_eurusd.jpg
The only I see - Chinkou Span line can cross the price for USDCHF first and than - price for EURUSD. Because this line is just near USDCHF price and we need 1 bar to know exactly. And 1 bar on H4 is 4 hours.
And we need few bars to know the situation exactly on EURUSD (we see where the white line and where the pric as we are talking about the crossing on close bar).
2 bars on H4 is 8 hours.