one export sale price replaces normal price?

When using Woocommerce store export…

When i export my products (all fields checked) everything exports fine except pricing. The sale price and the normal price are exactly the same, the normal price has been replaced by the sale price? only happens with sale product obviously

any ideas why or anyone else having this problem?

https://www.ads-software.com/extend/plugins/woocommerce-exporter/