When I looked at the following document in Cisco Secure Access Help, I found an interesting article.
https://securitydocs.cisco.com/docs/csa/olh/121296.dita
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Known Limitations
Secure Access has known limitations for the use of Reserved IP.
:
Remote Browser Isolation
Remote Browser Isolation (RBI) is not supported by Reserved IP. Applications or services that require a reserved IP address should not use remote browser isolation.
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A similar statement was found in Cisco Umbrella Help.
https://docs.umbrella.com/umbrella-user-guide/docs/reserved-ip
Is there any reason why RBI doesn't support Reserve IP?
Are there any plans for RBI to support Reserve IP?