Current version is 1.1.3, and it should work fine with WC3.2.3. 1.1.2 had issues with variable products in combination with WC3.
I noticed it was not available on the account page, it should be now. Please try it out (deactivate + uninstall old version, then install + activate new version). Unfortunately auto upgrade is not yet implemented. This is scheduled for version 1.2.0
If after upgrade it’s still not working, please tell me what issue are you having?