We have licences for version 11 of Houdini. However, we have some digital assets that are written in Python, and in version 11 there are some Python bugs that are still not fixed yet. So we are trying to install both versions 10 and 11 on the same machine. For version 10, we want to use the apprentice version, and for version 11 we want to use our license. We have tested installation on 2 machines. One with both version installed and another with only Houdini 11 installed.
The one with both versions installed, only version 10 is able to start. Version 11 returned some licensing software error message when started. We tried some of the suggested solutions posted on Houdini forums, but this did not help. The one with only version 11 installed had no problems starting.
It would seem that Houdini 10 is preventing Houdini 11 from starting up somehow. Any thoughts on this.