If you're having issues with texture loss while using LSPDFR and other mods (mainly modded vehicles), you can try the following:
Set Main.PreloadAllModels to false in the lspdfr.ini file.
More information on how to do this can be found here: https://www.lcpdfr.com/wiki/lspdfr/04/features/settings/
This was posted by @Sam and that fixed the issue for me!!