There are some VC papers today which will have issues with other than red safelight.
Use the closest you can to the manufacturers recommended safelight filter. That may not be a Red filter. There can be a problem with red safelights with VC papers which causes a reduction in the achievable contrast range, it's similar to using pre or post flashing to reduce contrast.
This was the reason some manufacturers like Paterson began making special VC safelights/filters.