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I assume that you are using Firefox, because I replicated the same error on it.
In this case, I suggest you to print this report on Chrome. To be sure, save it as a PDF first, then print that PDF file. On my tests, Chrome doesn't replicate this issue.
Also, I'm going ask this problem to our developers. If there is a bug about it, it will be fixed as soon as possible.
For further assistance, please let us know.
I confirmed that there are some unexpected errors for this operation. It will be fixed as soon as possible.
Thanks for your cooperation.