Weird block appearance after updating to SR17

Hello,

i reported an issue some time ago regarding locked blocks’ appearance.
Now i see some changes in that, pity that it got a bit weirder.

Now blocks (gems imported from Gemvision Matrix) have kind of shadows or backsurface color leaks (i have it set to single color). Yet locked state transparency issues persist. It still somehow depends on copy state - if a block item gets copied, both objects may begin to look normal when locked.

When exploded, blocks look as they should, without “backface shading”

FYI, Bob

Hi Bob -

From the description and the image, it looks like you are running into this one: RH-86448 Color artifacts in blocks
-wim

Thanks Wim, i swear i did forum search before reporting

RH-86448 is fixed in Rhino 8 Service Release 18 Release Candidate