We have a map that is the base map for our service technicians and when we upgraded everything to version 10.6 we lost the ability to publish and thereby update our base map.
Can you provide any additional detail? Like, are you seeing any specific errors? What's your publishing workflow? When you say 'everything', what specifically does that mean?
What version are you upgrading from? And us the basemap cached? I've had issues with cached services coming from 10.2.x (but we are upgrading to 10.5.1) and have a workaround...and another to test when I am back in the office next week. If it is an upgrade from 10.3.x or higher, the workaround would most likely not apply.
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