So, uh, this particular Flex piece is still broken. No idea why, or how the Euro texture (I think) is getting in there, but I think the next step might be either relocating it to a new ID or even just scrapping it outright at this point...
It appears to be limited to the US LHD support file for the RHW--it's a remnant of the earlier IID assignment issues that once existed with that piece. The US RHD, EU RHD, and EU LHD versions are all fine. I'm fairly sure I fixed that one at one point with US LHD as well, but it appears my fixes didn't make it into the file (the date on it appears to be June 22nd, so that's before NAM 37 was released).
Here is a full-on replacement for that file. It'll replace the version that's in
Network Addon Mod\7_Texture and Drive Side Support\US_LeftSide.
EdwinFox, welcome to SC4 Devotion, and thanks for the kind words! Unfortunately, we're not all that fluent with the process of running the NAM on Linux (which, per our last user poll, actually has a larger segment of the NAM userbase than macOS does). I have heard of some other users having difficulty with getting the 4GB/Large Address Aware support in place on Linux, but have read/heard differing solutions.
I did find a recent thread over at
WineHQ on the topic. Some folks on there seem to be using Proton, others have set WINE_LARGE_ADDRESS_AWARE=1 as an environmental variable (which apparently causes Wine to read all 32-bit Windows applications as being Large Address Aware).
Hope that at least provides a good starting point--if you're able to get things working solidly from there, we can incorporate the findings into the next revision of our documentation, and possibly into a future revision of our installer.
-Alex