Hey there marcantoine.giguere,
Thank you so much for reaching out for assistance on this matter.
We really want to be able to help, but for this specific issue, we are going to need some more information.
If you are using the Rift, could you please send us these answers and attach the log files of your computer to us in a support ticket?
In order to collect the logs, please follow these steps.
We look forward to finding a solution together, come talk to us.