Power Automate to Smartsheet - error on checkbox value


Hi all!

I am using Power Automate to insert a row into a sheet. The sheet contains a checkbox field ( I have removed the 'Restrict to checkbox use only').

Upon insert I get this error:

The value for cell in column 8850556387125124, True, did not conform to the strict requirements for type CHECKBOX.

Am I missing something? Can we not pass a value to a checkbox field?

*I have also tried passing 1 for checked and it fails with the same error.

Any help is greatly appreciated!