Operating System:Windows 8.1
Operating System Bit:64bit
Software Version:9.0.6
In the spin tree, if you press previous or next paragraph, it gives unhandled exception.
//// error message ////
Unhandled exception has occurred in a component in your application. If you click Continue, the application will ignore this error and attempt to continue.
Specified argument was out of the range of valid values. Parameter name: index
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Spin tree functions should be bug-tested.
