It seems that when I close / re-open a tab with UrzaGatherer, it always load the version 9.5.1. I need to press "SHIT + F5" to reload the tab and get latest version.
In dev tools, I verified that "Update on reload" is checked.
I tried to manually delete the "Latest" key in local storage, but it get back to 9.5.0 if I press F5.
So, only "SHIFT + F5" seems to correct this issue. Any idea how I could fix it permanently ?