Fix for this issue is now available in the latest update of InDesign 2020 – that is, InDesign 15.0.1
In the Creative Cloud Desktop application, click on the Updates section on the left. You should be able to see the Update available for InDesign. Please update your InDesign application to this version to try out the fix.
Let us know in the comments section if you face any problem with the updation process.
Adobe InDesign Team
An error occurred while saving the commentJason Sellers commented
I produce graphics from linked excel spreadsheets for daily sales.
After updating to 2020, the cells with conditional formatting are all showing as 0%. Going back to InDesign 2019 and relinking the spreadsheets brings them up to date.Jason Sellers supported this idea ·