We have installed Square extension for Magento 2 from here: https://marketplace.magento.com/square-module-squareup-omni.html
When we trying to set up sandbox environment in Magento admin panel, none of the locations are showing. Since there are 3 sandbox locations available by default they should should show up.
What can be the problem here? We have already generated Sandbox application id and Sandbox access token. See attached screenshot. https://www.dropbox.com/s/vfts2t4020b2pdh/Screenshot%20from%202019-08-07%2014-39-25.png?dl=0
And if we try to save configureation without any location we get error, screenshot also attached here. https://www.dropbox.com/s/dzy0ihtjvg1s600/Screenshot%20from%202019-08-07%2014-39-29.png?dl=0
