I assume this is the vmt the planks use, and while comparing it to the trenchwall_128 vmt (wich does not have this issue) I can see that
Code://"$bumpmap" "models/props_frontline/trenchwall_1_n"
but it is still
Code:"$bumpmap" "models/props_frontline/trenchwall_1_n"
in the "trenchwall_boards_1" vmt.
To clarify, can you confirm that this problem is only with the model that separates the planks from the pillars? Like, the models that are just 4 planks and such. If it also persists outside of those models, please let me know. Thanks!