Yes, of course, a problem with any update could affect to Avast solutions.
Antivirus/cibersecurity solutions are not as any other applications running on servers or desktops. Antivirus/cibersecurity solutions need a deep interaction with the operating system to protect it.
The advantage of use Avast Business is Avast Free and Avast Premium Security (consumer solutions).
Avast Free is always one or two versions up from Avast Business and Avast Free has a lot of users around the world. This is the best testing environment you can design.
Despite of this testing environment, any update on business agent, something that consumer product doesn't have, could generate a problem.