UPDATE: I just noticed this bug (#4130) in the tracker:

The admin menu icon vanishes when an upgrade is required

I wonder if it is the same issue. The summary says “when upgrade is required” but it occurred for me after the upgrade. And, the main Forum admin icon is there, it’s the admin sub-panel icons that went missing for me.

I’d be happy to help test the indicated edits to spa-dashboard.css but I do not have access to view them. If it may indeed be related, provide the necessary code change and I’ll give it a try.

Thanks!

No it is not the same issue. That issue effects the ‘loud-hailer’ icon on the main WP menu.

We do have a report that a plugin called, if I recall correctly, WPMU DEV, is in conflict and causing the icons to vanish. I have no ides what this plugin is and does but could that be your issue?

Yellow Swordfish said
…a plugin called, if I recall correctly, WPMU DEV, is in conflict…

What is the name of the plugin? WPMU Dev is the publisher of numerous multisite plugins, of which we run many. <sigh>

no, not any by wpmu dev… lots work… not sure which one Andy is referring too…

Ya know, I have seen similar… have not investigated…  its harmless for me, just appearance… same for you?  In fact, I see it now on our support site…  guess its time to investigate…

Mr Papa said
In fact, I see it now on our support site…

Interesting! I doubt you are running any WPMU Dev plugins. (FYI: That is just the legacy company name, and nothing to do with WordPress “MU” anymore).

I did find the other topic indicating their Dashboard plugin as the cause. And deactivating it did bring the icons back, but that’s not a solution for us. So far it does indeed seem only cosmetic, but I haven’t updated our live site yet.

The last thing I want to do is get between developers blaming each other’s plugins, but I do wonder how their plugin can be the cause of an issue that did not occur prior to the SP update. Regardless, I’m happy to help test this in a multisite environment. Thanks!

PS: The new icons look great with the new WP dashboard interface!

I do wonder how their plugin can be the cause of an issue that did not occur prior to the SP update.

It depends on what the cause actually is. The obvious inference is some sort of CSS conflict – although that is not by any means a definitive diagnosis.

But yes – it appears purely cosmetic.

Let me know if there is anything else I can do to help troubleshoot or test any patch if one gets developed.

Thanks!

If these are free plugins and you can tell me what I need and where to get it from I am happy to try and recreate and diagnose the problem of course…

The WPMU Dev Dashboard plugin is free, but if you don’t want to create an account to download it let me know and I’ll send you a current copy. I doubt they would mind me giving it to you for testing purposes!

https://premium.wpmudev.org/project/wpmu-dev-dashboard/

FYI: It will not do much without a WPMU Dev membership, but should still allow you to attempt replication of the issue upon activation. This plugin is solely for managing all their plugins, themes and support tickets from within the WP dashboard.

if you are willing to send me a copy for testing then that would be great – thanks Jim

Sorry, I see icons, but also the space between the top two items…  so no, the wpmu dev plugin is not needed for that… but might be for the missing ones as its not been reported (in 5.4.1) yet…

Thanks for that Jim.

As expected it is a CSS rule clash. Interesting actually  because I think both us and the authors of this other plugin are probably equally to blame in that neither of us, in this instance, prefaced class names with a unique identifier (which we usually do by the way but missed it this time). So six of one half a dozen of the other.

Working in a fix…

Yellow Swordfish said
Working in a fix…

As always… you guys are the best! Thanks again.

Glad we could help..