11.2.0.1.0 RMAN increase backup exit with code 1 . But no any erroe messages

ORACLE version :11.2.0.1.0

Platform : CentOS6

Hi everyone:

I use RMAN to create a full backup and successed.

Few days later l use RMAN to create a increase backup. But it failed without any error code and message .

Then I use the rman debug mode ,still can not find any error info in debug info.

This is the RMAN increase backup script:

connect target /;
run
{
CONFIGURE CONTROLFILE AUTOBACKUP ON;
set command id to 'inc_debug';
allocate channel inc_debug device type disk format '/mnt/shujuku2/hnmtbakdata/orcl/incKV7h10fQ_orcl_20250107095717_3/%U.channel';
backup incremental level 4 for recover of copy with tag 'FULL_BACKUP_ORCL_DB' SKIP OFFLINE SKIP INACCESSIBLE database format "/mnt/shujuku2/hnmtbakdata/orcl/incKV7h10fQ_orcl_20250107095717_3/incKV7h10fQ_orcl_20250107095717_3_3_%d_%I_%s_%U.inc" filesperset 50000 ;