To me, this particular area was (along with the area around the upper entrance of the Pillbox Hill Medical Center when driving the Elgin Ave from south to north crossing the bridge to the townhall) an always bugging Area while using most of the common graphic mods.
I don't know how my own experiences could be linked to yours, but it makes me thinking. Have you ever used any kind of Grapic Mods, Map/Vegitation-Mods or MLOs in this area? I don't think LSPDFR is THE cause of your symptons, but maybe it's the one drop of water that overflows the barrel.
Anyways: As someone with an old unperformaning 16GB RAM, 8GB GPU and an outdated 2019 CPU I did following things to completely eliminate any kind of Texture loss in combination with VisualV/Reshade while playing LSPDFR:
Adding "fwBoxStreamerVariable"
Adding "Ressource Adjuster"
Set "Main.PreloadAllModels" to false within the LSPDFR.ini
Those two .asi in combination with the disabled PreloadAllModels from LSPDFR.ini are the ONLY combination of actions I took that eliminate texture loss sucessfully while using a light graphic mod and LSPDFR.