Forum Discussion
Cannot change the site logo thumbnail
Lucas_v
Hi Lucas.
Thanks for your info. This is so annoying and somewhat intermittent. It's happening again on new sites today.
I have managed to get the logo thumbnail to stick today by going to Site assets, deleting the existing "__siteIcon__.jpg " and then quickly uploading a new logo with the same file name and extension in Change the look > Header > Change site logo thumbnail.
Bit of a phaff but it's sticking so far! Pngs are working for the site logo.
Best wishes, Vicki
Hi, I have been fiddling around with this issue for some time now and I don't seem to have a fix that permanently works.
What I do have is some fixes you can try, but might not always work, or only work partly. They are combined into this instruction
- Get the picture you want to use for a thumbnail, and name it "__siteIcon__" (double underscores in front and at the end). Just that name and nothing behind or in front of it.
- Make the picture a JPG format, this seems to be working the best for me. Also try to make it small in size, I have mine at 256x256.
- On your SharePoint Homepage go to Settings > Site Contents > Site Assets. There you can delete all the old images you used for the thumbnail (I believe all files with __siteIcon__ in front of it).
- Drag and drop/upload the local JPG file you just created to this library. Quickly after select the file, and check it out (for me the three dots in upper right corner)
- After this refresh the browsers cashe (Crtl + F5). It might take some time for the thumbnail to update across all sites.
I hope this helps you!
Lucas
I have indeed found some success with using JPG images instead of PNG, which is a shame as I was hoping to include a transparent background around our Logo, but will have to settle for a plain white background in a JPG.
I have however discovered that there are discrepancies with how this works between site types. The workaround seems to work for Team Sites connected to a 365 group, but not for team sites without a 365 group, and communication sites seem to have no problem at all.
I am still not sure of the reason for the discrepancy, but it is quite frustrating.