Pues no me queda mas que confirmarte que si, esta fallando la consulta de operacion.
El mensaje de error completo que arroja es :
could not initialize a collection: [mx.gob.ventanillaunica.www.cove.model.RespuestaPeticion.coves#6398]; SQL [select coves0_.ID_OPERACION_COVE as ID20_848_1_, coves0_.ID_COVE as ID1_1_, coves0_.ID_COVE as ID1_936_0_, coves0_.BLN_IND_AUTOMOTRIZ as BLN2_936_0_, coves0_.BLN_CERTIFICADO_ORIGEN as BLN3_936_0_, coves0_.CORREO_ELECTRONICO_RESPUESTA as CORREO4_936_0_, coves0_.CURP_FIGURA_ADUANAL as CURP5_936_0_, coves0_.ID_E_DOCUMENT_COVE as ID6_936_0_, coves0_.IDE_EST_COVE as IDE7_936_0_, coves0_.FEC_EXPEDICION as FEC8_936_0_, coves0_.FEC_REGISTRO as FEC9_936_0_, coves0_.IDENTIFICACION as IDENTIF10_936_0_, coves0_.NUM_FACTURA_ORIGINAL as NUM11_936_0_, coves0_.NUM_EXPORTADOR_CONFIABLE as NUM12_936_0_, coves0_.OBSERVACIONES as OBSERVA13_936_0_, coves0_.BLN_RELACION_FACTURAS as BLN14_936_0_, coves0_.ID_OPERACION_COVE as ID20_936_0_, coves0_.RFC_CONSULTA as RFC15_936_0_, coves0_.RFC_REGISTRO as RFC16_936_0_, coves0_.BLN_SUBDIVISION as BLN17_936_0_, coves0_.IDE_TIPO_FIGURA_ADUANAL_COVE as IDE18_936_0_, coves0_.IDE_TIPO_IDENTIFICACION_COVE as IDE19_936_0_ from VUC_COVE coves0_ where coves0_.ID_OPERACION_COVE=?]; nested exception is org.hibernate.exception.SQLGrammarException: could not initialize a collection: [mx.gob.ventanillaunica.www.cove.model.RespuestaPeticion.coves#6398]</
Y esto es para el numero de operacion 6398, una operacion que ya habia sido aceptada hace mas de un mes