I'm trying to save a record and I'm getting "Record has been changed" error, any solution?

Pretty generic error. Usually happens from a workflow or user event. Might want to check that no database API's are hitting your record before it saves like nlapiSubmitValue()

I'm using currentRecord module and setting some values in the client script

the error means that between when netsuite retrieved your record and when you saved it, something else saved the record

could it be because of using currentRecord module and setting some values

it could be if you have a horribly written client script deployed to your record

but if it's not a horrible written client shouldn't cause this problem right

yes

that's strange because there is nothing on record that will save it

debugging steps usually are to start disabling any workflow or user event script deployed to your record

Thanks