Hello,
I report a small bug for dnn developper here, because it seems my new authenticated Gemini profile doesn't allow me to create issue...

I changed admin icons and host icons because they don't appears with solpart menu in 5.0.1. I know solpart menu is obsolete now but I confirmed the following bug with dnn Nav too :

I change the tabs icons from Tab Settings. So I choose from File (of site) instead of System Image. For the Admin icons, I create a new site folder : Portals/0/TabIcons where I copy the admin icons (found in Images folder). After synchronizing file in file manager and changing tab settings to get the icon file, I can see it in the menu, no problem. I do that with success for all admin tabs.
Now, I do the same steps for host icons : I create Portal/_default/TabIcons folder, I synchronize this folder and I copy my host icons from Images folder to this one ; and I configure each tabs settings to accept these icons. This is the bug : I observe that some icons don't appear in host menu, and some of them only. In fact, icons well displayed in host menu (path from Portals/_default/TabIcons) must be too in my portal (Portals/0/TabIcons) !!! it seems a store procedure mix portalID = null and others for similar folders name.

Hope you understand my bad english and resolve this small bug.
Bye.