Hi Kylli,
which GeoServer version are you using?
do you have a gdalinfo output of one of the input images composing the
mosaic?

Please, let us know.
Regards,
Daniele

On Mon, Mar 1, 2021 at 2:28 PM Kylli Ek <[email protected]> wrote:

> Hi,
>
> Any idea what to check if some WMS images are sometimes partly randomly
> blue, green, yellow, pink or red? See the attached images or here:
> https://www.dropbox.com/s/lma4hzqp761y28m/Nimiarkisto-karttabugi.png?dl=0
>
> Sometimes the image is also partly black or totally empty.
>
> Exactly the same request sometimes gives correct image, sometimes has the
> colorful extras.
>
> The layer is a mosaic layer with elevation and time. Nothing special in
> style, only scale limitation. No coordinate transformation needed.
>
> Example request:
>
> https://paituli.csc.fi/geoserver/kotus/wms?service=WMS&request=GetMap&layers=kotus%3Anadigi2&styles=&format=image%2Fpng&transparent=true&version=1.1.0&elevation=1718&time=1750-1-1%2F2020-1-1&height=256&width=256&srs=EPSG%3A3067&bbox=416032.0000000002,6782975.999999997,418080.00000000047,6785024
>
> Best regards,
> Kylli Ek
>
> GIS-coordinator
> CSC - IT Center for Science Ltd
> PL 405, 02101 Espoo
> Tel: +358 50 38 12 838
> [email protected]
> _______________________________________________
> Geoserver-users mailing list
>
> Please make sure you read the following two resources before posting to
> this list:
> - Earning your support instead of buying it, but Ian Turton:
> http://www.ianturton.com/talks/foss4g.html#/
> - The GeoServer user list posting guidelines:
> http://geoserver.org/comm/userlist-guidelines.html
>
> If you want to request a feature or an improvement, also see this:
> https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer
>
>
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>


-- 
Regards,
Daniele Romagnoli
==
GeoServer Professional Services from the experts! Visit http://goo.gl/it488V
for more information.
==

Ing. Daniele Romagnoli
Senior Software Engineer

GeoSolutions S.A.S.
Via di Montramito 3/A
55054  Massarosa (LU)
Italy
phone: +39 0584 962313
fax:      +39 0584 1660272

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

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If you want to request a feature or an improvement, also see this: 
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer


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