Hello. Thank you for contacting the Toolset support.
After checking to debug information you shared with us, I found that you are using an outdated WordPress version. Can you please update WordPress to the latest official release version: 5.3.2
Just in case to check there is no other plugin or theme conflict:
Could you please try to resolve your issue by deactivating all third-party plugins as well as the default theme to check for any possible conflicts with any of the plugins or themes? - Do you see any difference?
If your issue still persists after updating WordPress - Can you please tell me how you created the custom role Heather? Have you used "copy from" role while creating the role Heather?