Multi Field options cause 404 instead of Save

Toward the beginning of my form I have a multi-field which includes a text field, radio, and dropdown (Date of Birth, Gender, Grade). I can do the basic set up of setting name, id, label and validation. But when trying to add drop down values, or a date mask for the text field I get a 404 error when attempting to Save.
https://www.theoakscamp.org/index.php?option=com_chronoforms5&chronoform=Summer_Camper_Reg

Any ideas?

OK, I've simplified the reproducible steps of this.
Element Type: Drop Down
Label/Name/ID: "Grade"
Values:
"=
K=K
1=1
2=2
3=3"

Results in 404 each time.

Hi Jmeidal,

I can't replicate this, see my test form here. The first dropdown is plain vanilla, the second is in a Multi Field element.

Bob

Thanks for testing this. I can still reproduce this here:
https://www.theoakscamp.org/index.php?option=com_chronoforms5&chronoform=form_test

I can construct the form that far.
But once I switch Yes=Yes to 1=1 I get 404 error on the backend. I hope I made that clear--this is a 404 on the administrator backend, not the front end form submission.
I just created a form from scratch again and reproduced it:
https://www.theoakscamp.org/index.php?option=com_chronoforms5&chronoform=testing

Let me know if I can test anything else specifically to help with this.

Hi Jmeidal,

The backend of mine is also working OK.

A couple of things to try, please check that you don't have any empty rows at the end of the options list.

Also remove the = line and add an entry in the Empty Option box to show as the 'un-selected' option.

Neither of these make any difference to my test but they are the only possibilities I can see so far. If neither of those do the trick please send me a form backup to test.

Bob

Yes, no empty slot after the values. I changed the first line to 1=1 and it fails to Save with a 404.

e.g. from:
=
K=K
Yes=Yes

to:
1=1
K=K
Yes=Yes

I've attached my backup here.

I don't want to be barking up the wrong tree as perhaps there is another component conflict, but I also want to report this if it is contained within ChronoForms.

This is private content

Hi jmedial,

I restored your form here - I'm not seeing any problems in the front or back-end. I opened it up for editing, checked the settings (they all look OK), added an Options then re-saved with no problem.

Bob