WeeGordon

I want to upgrade Home Designer Pro 2017 to 2019. Will the 2019 upgrades include all that I have missed fro 2018 or will I have to upgrade in two stages?

I'm running HD Pro 2015 on an iMac all has been well for months but the program crashed recently. When I try to re-open my file i get the following message: Assertion failed: The plan file you are attempting to open appears to be corrupted. You should revert to a backup copy of this plan. Can anyone suggest a cure please?