Installing app from network share failing

When I try to install an app from a network location (something like \\some\network\location\App.ipa), Appium doesn’t seem to be recognizing this as a valid path, and spits out this:
“Original error: Bad app: /Applications/Appium.app/Contents/Resources/node_modules/appium/\\some\network\location\App.ipa. App paths need to be absolute, or relative to the Appium server install dir, or a URL to compressed file, or a special app name.”

I have verified that the network location is correct, but I don’t know how to get Appium to recognize that it’s a valid path and not try to append it to the working directory. Does anyone know how to do this, or if this is even possible?

edit: I should add that I’ve also tried changing the path to //some/network/location/App.ipa, to no avail