...
To determine where those problematic characters are located, the below steps can be followed:
Modify the number for the app's error threshold of the app to a number bigger than the issues included in the project , so the app won’t stop the deployment of issues when that number of errors is encountered.
Redeploy the snapshot and generate a support zip making sure the DEBUG of the app , ensuring the app's DEBUG is enabled, ; in that way, all errors related to this problem will be reported.
Once all issues are identified on the logs (see example below). Modify , modify all problematic comments by deleting the null character (on the source) and re-create the snapshot.
...