Not a valid identifier' errors

I programmed a study and completed quality checking. Today, I downloaded the latest version of Sawtooth software and converted the study to latest version. Suddenly it throws 365 errors (all are 'is not a valid identifier' errors)

1. Error: Question 'Q25' - Question HTML - 'Q25RowConList' is not a valid identifier.

However, it allows to test the survey locally. If any error in a survey it should not allow to test the survey but it does. Strange!

I am really worried after getting these errors in a QC'ed survey.

I didn't do anything rather than downloading the latest version.

Please suggest

Resolved
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