# PureCN Custom Analysis error **URL:** \ **Category:** Report an Issue\ **Created:** [May 30, 2025, 1:55pm UTC](https://forum.depmap.org/t/purecn-custom-analysis-error/4246 "2025-05-30T13:55:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Beernaert](https://avatars.discourse-cdn.com/v4/letter/b/f14d63/32.png) [@Beernaert](https://forum.depmap.org/u/Beernaert)\ **Post date:** [May 30, 2025, 1:55pm UTC](https://forum.depmap.org/t/purecn-custom-analysis-error/4246/1 "2025-05-30T13:55:30Z")
Hi there, There seems to be an issue when one attempts Pearson correlation with Omics Signatures derived from PureCN (WGD, CIN, LOHFraction) and CRISPR or RNAi screen sensitivities. ![Screenshot 2025-05-27 at 11.05.39](https://canada1.discourse-cdn.com/flex035/uploads/depmap/original/2X/9/98f11893f6c30a2e71d83c3b4876d3640f26e752.png) ---
**Author:** ![pmontgom](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.depmap.org/pmontgom/32/4_2.png) [@pmontgom](https://forum.depmap.org/u/pmontgom)\ **Post date:** [June 6, 2025, 2:09pm UTC](https://forum.depmap.org/t/purecn-custom-analysis-error/4246/2 "2025-06-06T14:09:11Z")
This appears to have the same underlying cause as the problem reported in [Error in Custom Analysis: Omics Signatures Public](https://forum.depmap.org/t/error-in-custom-analysis-omics-signatures-public/4245). However I have some good news: After reproducing this on the portal, I checked in our dev environment (which contains our next release, which is tentatively scheduled to go out on Monday) and it was working there. I believe this should be addressed when the new release goes out. ---
**Author:** ![Beernaert](https://avatars.discourse-cdn.com/v4/letter/b/f14d63/32.png) [@Beernaert](https://forum.depmap.org/u/Beernaert)\ **Post date:** [June 6, 2025, 2:44pm UTC](https://forum.depmap.org/t/purecn-custom-analysis-error/4246/3 "2025-06-06T14:44:58Z")
Thanks for the speedy and very helpful reply - much appreciated!