eab_archive shortcode not working in Events+ 1.9.7

In 1.9.6, the following shortcodes work ok.
[eab_archive category="lecture" lookahead="1" weeks="52" template="asc-shortcode-archive"]
[eab_archive lookahead="1" weeks="52"]

Stopped working in 1.9.7. No events are listed on the page.