Validation error on importing updated template configuration

When I make a change to a Hub template and attempt to import the new configuration to update existing client hubs, I more often than not receive this error message. In some cases, if I leave it for a couple of hours and try again it will update as intended but I usually receive this validation error. The first widget updated seems to not receive a validation error but the remaining ones do.

Any guidance of how I rectify this would be appreciated.