Vray Proxy Alembic file Subdiv flicker

When I turn on the subdivision inside Vrayproxy so that the cached alembic file is subdivided it will flicker on and off when scrubbing. As if the subd itself is not always on. Any reason for this?

No issues on a simple scene. Could you send the scene and .abc file so we can take a look? Mention me and include a link to this thread.