checkBox and checkBoxSwitch controls cannot be used in workflow activation dialogs because their value is not stored in the workitem and is not available from the workflow definition. This prevents passing of simple true/false conditions to the workflow definition.

For example, a frequently requested workflow customization is to add a "Publish immediately" checkbox on the activation dialog or a "Needs legal review" checkbox that routes the workitem to a legal team. Because of the bug this is not possible.

The root cause is a legacy workaround used in reading values from dialog control elements with JavaScript and storing them in the workitem.