[KevinH]

That tells us that your launcher is somehow not invoking sigil as it should because a software only version of of the Sigil backend would never need to use the local storage for a DawnWebGPUCache since it would not be using the accelerated GPU since you told it to use software only.

First check out the permissions on this folder and its contents:

/home/ruben/.local/share/sigil-ebook/sigil/local-storage/

And make sure you have write read, write privs on that folder and all its contents. (and execute privs since it is a folder)


If permissions are correct, then try deleting that folder

/home/ruben/.local/share/sigil-ebook/sigil/local-storage/

as that local-storage folder should be properly recreated by Sigil if it needs it.

Does that change anything?