Lens effects in VFB doesn't update

[Vizioen]

Title says it all. They update when you zoom or switch to another element and back. Clicking update doesn't help.

3dsmax 2021
Vray 5.1.3
Windows 10 x64
Dell 4K 27 inch monitor
Nvidia RTX 3080ti

[hermit.crab]

The Update button is usually used when "Interactive" updating is disabled. Does it happen all the time? Could you try testing with the latest V-Ray 5 update 2.1?