The Research Object page in the _activities directory has been given the layout of product instead of activity. I think this was done to make the screenshot appear (the graphic with the conveyor belt).
It also is highlighted and as such appears in the logo-grid on the index page, in the second row (with the other highlighted activities of Bioschemas and CWL).
The product activity has a different path structure for logo:
product: Author must specify images/logos/ in path
activity: Author must not specify images/logos/ in path, as the layout adds it
If I were to correct the layout of the Research Object activities page, we would lose the screenshot graphic. If I add the missing path to the logo, the index page will no longer show the Research Object logo, instead will logo a missing graphic.
What to do?

Above: Page as it is now

Above: Page with the layout corrected.