[SOLVED] At my wit's end (Code Checkbox Multi-Select)

I have two Code Checkbox Multiple Selection fields defined. These are the type that present options whose display is dependent on other fields being "not empty" and Ajax updated on those other fields changing. The two fields are setup IDENTICALLY. Both fields present the 2nd option at the same time, so the Ajax part is working correctly and presumably so is the code part. When I check the 2nd option (this is the dynamic one returned from the code) on one of the two fields, it saves correctly. But the second one just WILL NOT SAVE. Everything about the two fields is identical except their names (obviously). I have the same exact setup on another site and it works fine. I am at my wit's end. Any suggestions would be appreciated. I can provide SU access to CB team members if necessary.

Edit: Since it may matter (though I doubt it since this works in the identical field), here is the field code: Thanks in advance.
Bruce

Well, it wasn't something I was doing. I am convinced of that. I renamed the misbehaving field and copied the identical one, giving this new field the name of the old field. It's working now, but I have no idea why the other one didn't. It was just a typical CB multi-select checkbox code field. Still baffled, but moving on.

Not sure why your second field wouldn't work. You could try using the below to utilizes substitutions instead of directly accessing the user object and using CBs email validation function.

The checkboxes rendered fine. The field values wouldn't save. I even set it back to a regular multi-select checkbox field and it still wouldn't save. I ended up deleting the field and creating it from scratch by copying the near-duplicate one, setting it up exactly as it had been. After that it worked. There was just something wrong about that field.

That's usually due to the database column type not changing and can happen when a fields type is changed. Usually can fix it by running the database fix tools within CB > Tools.