If you are sticking with an old version, you must prevent GTA V from updating. Use a mod like "GTA V Update Blocker" or set your launcher files to read-only. Otherwise, Rockstar will silently update your game overnight, breaking your old RPH.
Your game version, your RPH version, and your plugins must form a three-legged stool. If one leg changes, the whole thing collapses. Old versions let you rebuild that stool with vintage parts—just make sure the floor (GTA V) matches the legs. rage plugin hook old version
To recap, before you click download on any legacy build, ask yourself: If you are sticking with an old version,
> Linking to kernel32_alt.dll... WARNING: Non-standard memory space detected. your RPH version