We are using Aspose to export SSRS output to PPT.
I have observed the information shared by you and unfortunately have not been able to observe the specified grey line. Can you please share the source RDL along with data source with us. Please also share the RPL export of your report along with standard TIFF or PDF generated on your end. Please also share the snapshot of presentations describing extra lines. Please share requested information so that we may proceed further with investigation on our end.
I am uploading the files after changing the color of the random Lines to red.
Thanks for sharing the requested information. I have observed the difference between exported presentation and PDF. An issue with ID SLIDESRS-33533 has been created in our issue tracking system to further investigate and resolve the issue. This thread has been linked with the issue so that you may be automatically notified once the issue will be fixed.
We are sorry for your inconvenience,