On the RaceMenu Nexus Mods page , do not simply click the "Main File" at the top. You must look for the section or the specific archive labeled for SSE 1.5.97.
Release note / compatibility blurb RaceMenu 1597 — Skyrim Special Edition compatibility RaceMenu build 1597 now fully supports Skyrim Special Edition. This build fixes face morph export/import with latest SKSE64, restores slider persistence across saves, and resolves several UI scaling issues. Recommended for players using custom races, RaceMenu presets, and complex skin/texture mods. Backup your saves and presets before updating. racemenu for skyrim se 1597 work