Hi @Poomerang , can you please refer to How to report a bug to report us a bug ticket directly to internal as we want to take a further look at this ‘CUFFT_INTERNAL_ERROR’ .
If you don’t want to do the write-up again , just quote this Forum link in the bug ticket and add additional steps/reproducer you think could help us replicate the error in house . Attachment can be added to email NVSDKIssues@nvidia.com