Theme displayed incorrectly on Launchpad; correctly in Theme Designer and preview

[jvanattenhoven]

We have a custom theme for Fiori Launchpad on a S4 2022 system (SAPUI5 1.108.24). After upgrading another (testing) system to S4 2023 (SAPUI5 1.120.0) this theme is displayed incorrectly on Fiori Launchpad, but correctly in the Theme Designer and the Theme Designer preview.

The theme has been removed and re imported both in the Theme Designer and in the Theme Tool, but this does not help. Invalidating Cache in the Theme Tool (UI5/THEME_TOOL) does not help. How can we fix this?

[mamartins]

Did you clean the browser cache? Or used the browser incognito mode to test?

[jvanattenhoven]

Cache was cleared yes, other browsers tried.

On Friday I deleted the corrupted theme, imported a backup. But this did not fix it.

Today, it seems fine. So it might be a server cache issue.