Extremely late to the party – but I recently ran into this issue and found the solution: missing ‘/tc’ at the end of your TC config url, usually after the port.
Example: ‘http://YourTCDomain.com:3000/tc’
The rich client doesn’t need that, so it still connects, but through Mendix you’ll need to add it to hit the environment.
could you please double click into that error, i would like to see the error description inside
Failed to send the service operation Core-2011-06-Session/login. StringIndexOutOfBoundsException: String index out of range: -1
Please ensure the Teamcenter server is running on the address https://tcbq10v01.gplm.siemens.com.
But the Rich-Client is running