We are experiencing the same exact issue: EEI on mac has a critical error, "Product not activated." One if the machines worked itself out but another machine didn't. Our team has run the gamut on uninstall/reinstall, reboots, and activation tasks - we've been working with ESET support for weeks (case #00515008). The EEI agent is up-to-date (1.10.2672.0) on the failing machine.
Please patch this ESET or please acknowledge the bug now while you figure out the patch - this way we can stop worrying about it.