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If the above solution is not working, please raise a ticket to us.
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Known issue with DC/Server
We have known problems with loading Excel-like Bulk Issue Editor with 3rd party apps or scripts as follows:
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It seems like there is a conflict with the Javascript library, but It’s challenging for us to analyze the root cause and find a workaround for this matter. If you encounter a similar problem in loading Excel-like Bulk Issue Editor, please raise a support ticket here.