SQL Table column names come different sometimes

Hello everyone,
I have a job that runs this query frequently <Select * from [TableName]>
Sometimes, some column name comes like PD but the original column name is PROCESS_ID. I don’t do anything to fix it because It turns to normal itself and It takes max 10 seconds. How is that possible?


The column names connot change like that unless the table is being recreated always


That’s quite unusual. My suggestion would be to use column index instead of using column names