Created attachment 187259 [details] Shape with multi-step transparency gradient Open attached document. It has a shape with a multi-color gradient and with a multi-step transparency gradient. On first slide start and end is full transparent, in-between steps are opaque. On second slide the start step is full transparent and the end step has 50% transparency. In-between steps are opaque On third slide is a solid transparency of 50%. Start the slideshow. Notice, that on the first slide the whole shape is full transparent and on the second slide the steps in-between are missing.
Created attachment 187260 [details] Gradient with transparency Import from pptx has the same problem.
Confirmed Arch Linux 64-bit, X11 Version: 7.6.0.0.alpha1+ (X86_64) / LibreOffice Community Build ID: 85a47bbb8340e65a19dc1ceaac768902a771ee77 CPU threads: 8; OS: Linux 6.3; UI render: default; VCL: kf5 (cairo+xcb) Locale: fi-FI (fi_FI.UTF-8); UI: en-US Calc: threaded Built on 17 May 2023
Seems also fixed with https://gerrit.libreoffice.org/c/core/+/152392, so reason might have been same as tdf#155437, so maybe double.
I have a build including https://gerrit.libreoffice.org/c/core/+/152392 and can confirm, that this bug is fixed. I have checked it with and without Skia. So setting duplicate is fine for me.