VCF Automation 9.0.x
The internal token refresh mechanism fails because the cached session token is revoked when a user manually logs out or the browser session times out due to inactivity. When accessTokenTimeToLive is increased, the system may bypass certain internal refresh behaviors, leading to unauthorized calls once the UI session ends.
Fixed in release VCF 9.1 and higher. See Download Broadcom Products for steps to download this release.
Release Notes: VCF 9.1 Release Notes
Workaround:
If you cannot upgrade to VCF 9.1 immediately, use the following steps to maintain an active session during deployments: