RDM + DVLS Yubikey Authentication

Hi, i'm trying to implement 2FA with yubikey, here is my configuration :
RDM 13.0.5.0
DVLS 4.7.0.0
Yubikey Neo

If I enable the yubikey on RDM options/security/2FA everything goes fine, but only my local RDM is protected, so I've disabled it.

Now if I enable 2FA on DVLS datasource (optional/yubikey) :



and set yubikey on user account with the option "configure later by user".



Then I launch RDM and connect to the datasource I've modified and touch my yubikey to register it...



I've this error and receive the mail in attachment to the case.

Devolutions.RemoteDesktopManager.Business.TryGoOfflineException: Unexpected exception ---> System.Net.WebException: Unexpected exception
à Devolutions.Server.ApiWrapper.RestClient.GetResponse[T](HttpWebRequest request)
à Devolutions.Server.ApiWrapper.RDMSWebClient.SaveTwoFactorInfo(String userSecurityEntityID, TwoFactorInfo twoFactorInfo)
à Devolutions.RemoteDesktopManager.Business.DataSources.RDMSWebApiClient.ceac77138a4fb1abbe7b36e4fb6438a17.c20c7024e6a92cd5380842b0e837ff56e()
à Devolutions.RemoteDesktopManager.Business.DataSources.RDMSWebApiClient.c5f4f6c72c053c0cd60a62abeeaa43fdf[cb75a0a5d15a1ad8b8a8a5e57cca214a3](c31561c0d54939abd223ac7c0cf30e7e6`1 c6cc9ab02b2ea9ccd42c7c0497677bcc2)
--- Fin de la trace de la pile d'exception interne ---

Any idea will be nice.Thanks