Resolved! What log is it?
WS-C3850-48XS Version 16.3.7 *Aug 31 12:13:20: %FED_L3_ERRMSG-3-RSRC_ERR:Switch 1 R0/0: fed: Failed to allocate hardware resource(REP RI) for VRFID:0 (10.19.234.39, 239.19.234.39) - rc:1*Aug 31 12:13:51: %FED_L3_ERRMSG-3-RSRC_ERR:Switch 1 R0/0: ...