JVET-AI0089 [1] proposed RA/LDB unified reference frame synthesis for VVC inter coding enhancement, named URFS. In this contribution, VTM-11.0_NNVC-9.0 (NN-tools on) is first used to generate a new training dataset. Then, URFS is retrained based on the training strategy proposed in JVET-AI0089 to obtain new RA and LDB models for tests. URFS is integrated in the latest VTM-11.0_nnvc-10.0 anchor. Compared with VTM-11.0_NNVC-10.0 (NN-tools on), the BD-rate performance of retrained URFS under RA and LDB configurations is as follows: