Old charts not compatible with latest version?

[csrt]

Hello, I am using version Version: 2020.3.2, and I am facing the following issue: charts that have been drawn in older versions (2019. ..) - display wrong data in 2020.3.2, and when trying to edit them - it throws an error: cannot read property "toString" on undefined.

If re-drawn - charts work.
Is it a bug? Or the older charts are not compatible with 2020 versions?

I've attached a screenshot of the error.

[Lech Kulikowski]

Hello,

Please send us a sample report for analysis.

Thank you.