Now I can reproduce with displacement mapping enabled (I had it disabled):
Explanation about this option can be found here: FS2024 Graphics Settings and Performance Guide (11/20/2024)
Maybe root cause is the runway incorrect material used, somehow related to the report I mentioned here: CYHH NEMISCAU - Destroyed Runway 27 - #3 by DementedCorn327
@JUANMAXZ3 : could you add in your “reproduction steps” that displacement mapping" must be enabled ?