Sporadic Unauthenticated with Get-PSUCache

Product: PowerShell Universal
Version: 5.x

Hi,
I have some scripts sharing information between them using PSUCache. 99.9% of the time there is no issue but sporadicaly, I have:
Unauthenticated. Specify an app token, use default credentials or enable permissive security model.

The “SecurityModel”: “Permissive” is set in appsettings.json and most of the time I do not have this issue.
I have 2 scripts:

• One writes Set PSUCache frequently (every seconds or more)
• Second one Get PSUCache also very frequently (several times a second)

I sometimes also have that issue with Invoke-PSUScript.

How to avoid this ?

Thanks