Wrong preview of TIF/PSD with vector mask

[BiJeiTi_Ph]

I found a viewing bug when Lightroom Classic try to show the preview of TIF files with vector mask.

The preview show also a part of the removed background. This come out for a lot of image.

Here an example:

[Just Shoot Me]

LrC does not Read the layered tif file. It reads the Flattened version that is saved inside of the tif file.

Reopen that tif file in Ps, Not through LrC, and Resave it then look at it in LrC