I am pleased to say that the Tango control surface works well with Nuendo-7 and Nuendo-8 on Windows-10.
The importance of the Tango working with Windows-10 is that the next W10 update (due April 2019) does away with the FLS limit of 128 and increases the limit to over 4000! This means we should again be able to install all Tango devices in Nuendo/Cubase as well as being able to install potentially thousands of plugins into a project (depending on system specifications). The number of Tango devices that can be installed at present has been reducing steadily with every recent Nuendo/Cubase update, so this should counteract that. See this:
Nuendo-8 2 inserted a problem which affects the ability of the Tango to edit Insert plugins, but I hope there will be a fix for this soon. Nuendo-8.0.10 does not have the problem, but I am staying with N7.1.40 until the issue is resolved. See this: