New Blog Templates plugin v2.6.2 doesn't copy categories or tags

I have successfully created hundreds of sites to date (most recently on 4 March 2014) in a WP v3.71 multisite network using the New Blog Templates and Batch Create plugins. Since upgrading recently to v2.6.2 of New Blog Templates, categories and tags of my templates (the same templates that I've used successfully countless times) are no longer copied to new sites, whether created individually or using Batch Create.