Yes – I noticed that tick() was called inside maintain()… but the difference is that maintain() is a public function (as opposed to tick() which is private in the stock version of UIPEthernet), so I figured I can put it in that place in OpenSprinkler.cpp without causing a fatal error during build. Of course, if the customised version of the library makes tick() public, that would fix the error too.
And it still doesn’t appear to matter, since I’m pretty sure delay_nicely is not called at all in the current version of OpenSprinkler.cpp