Thank you for testing the openCanvas RC version.
We have confirmed that there is no major problem therefore we have released openCanvas 7.0.05 officially.
"Release candidate" option on Steam Client will be ended on November 6th.
Please make sure to change the "release candidate" option to "NONE" by then.
If you don't change it by November 6th, you will need to uninstall openCanvas7 and reinstall it again.
Thank you for the understanding and cooperation.