Application Manager does not show any plugin update anymore after patching to Zurich release Patch 5

[Smallknife]

Hi all

After patching our DEV instance to Zurich Patch 5 we wanted to update all our plugins.

But after upgrading the first plugin the application manager does not show any available update anymore.

We did the same procedure on our TEST instance and got the same issue.

Case is opened for ServiceNow but no answer to far, that's why the question here : does anybody have the same or a similiar issue and probably a solution?

Many thanks for your support.

KR, Urs

[VincentBlouin]

I had the same issue and support provided a new KB with a workaround :
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2719949

[chadhopkins]

I tried the workaround in this KB and it fixed our issue.

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2719949

[jxsentara]

Unfortunately, ServiceNow is forcing everyone to upgrade to Zurich Patch 6 Hotfix 1 to fix a couple issues they have found in Zurich that are catastrophic, so I tried to run this script in our dev instance and it was blocked as already having been fixed. Plugins are still in the same stuck state for me, when I try to update it says the current version is already installed even though I can see there is a new version. 

[saxtonjoshu]

I got ahead of myself. 
KB2719949 - this has the "fix script" to run to repair the script include: AppManagerCache
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2719949

Run the background script. 

Then run the command in a background script: new AppManagerCache().deleteAllCache();

This allowed me to repull plugins from the store (Sync to Store button) and update the plugins needed. 

They say this is patched in Zurich Patch 6 HF 1?