Noticed the following issue when importing Related Products in VM3 (CSVI Beta 5):
See attached .csv file, it is very small. 1 product, 1 related product
The import completes, but strangely the log file (see attached) is very big.
When i go to product admin, i can see a product inserted but no any value/reference, see attached image.
At product details page:
http://www.qttest.eu/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=913&virtuemart_category_id=801&Itemid=451
You can see at the bottom: "customfield related product has no value"
I have also attached a screenshot from the setup of the related products customfield.
I hope you already have enough info to start looking into this

Rgrds,
Chris