Hi Malcolm,
The best way to see if this is an issue in 2015 is to try it there. To do this, it's best if you use a different computer where you can download and install the trial version of Home and Business 2015. Then restore your backup there.
You can use below link. Click the Investor tab for Home and Business 2015.
http://www.reckon.com.au/category.aspx?cid=2&__hstc=157624869.410dd3c4b3bc8c0d99fbc122213eff92.1421639017642.1421639017642.1423700725005.2&__hssc=157624869.1.1423700725005&__hsfp=1440305076&_ga=1.123803274.1215464734.1421639014&utm_source=Community&utm_medium=Community&utm_content=Community-Personal&utm_campaign=Community-Personal
Regards
Deny Dharmawan