(04-30-2022, 03:19 PM)Krikor Wrote: I had never created a file in this format (webp) before.
There's always a first time!
But with me the same thing described by the OP is happening.
When opening the file in the browser (Chrome) the background appears in white and not in transparency.
PS:
Hmm, saving as .gif does the same; displaying white and not transparency.
I tested by opening both files in Chrome and Firefox.
In Gimp it opens as expected, with transparency.
Works for be with both chromium (transparency rendered on black) and Firefox (transparency rendered on gray) and Gwenview (transparency rendered on checkerboard). In each viewer get the same kind of transparency for both animations (webp/gif) and still pictures (png).