UMTRX - Missing IMEI in the Identity Request

Hi All, We have encountered an issue in latching/phone camping using UMTRX and OSMOCOM elements. During the registration process, encryption command fails since the OsmoBSC/BTS does not provide the IMEI in the Identity Request. Note that the Mobile core only permits a5/1 encryption. This issue is not encountered using ETTUS B210 with same version of OSMOCOM elements and same configuration files. May we know if this is a known issue? The UHD version used is the UHD_003.010.002.HEAD-3-g122bfae1 and the UMTRX Driver used is1.0.3-128-93d4343. We used the URL below in installing the driver and module of UMTRX: https://umtrx.org/applications/driver/ Best Regard, Ron Menez ron.menez@entropysolution.com<mailto:ron.menez@entropysolution.com>