I don't think it was necessarily HEK+. It was happening to all my maps, and the only thing I've ripped was b30 as a test map and that was over two months ago. I've done a lot of work since then so I don't think it could be related to the HEK+.

I wish there was a manual of some kind available with all the error codes...or at least a guide to interpreting them. Maybe H2V will be supported in this way.