There was a recent update that was pushed to fix data arrays on plugins for installation from the dashboard. While pushing this commit I fudged the head/reference on the submodule. This may had caused some users to not be able to update from their dashboards and could had produced a blank System Response in the widget.
To combat this, I have updated and fixed the offending submodule (thank you @tchoot for pointing this out)
You can run the new update as follows:
git checkout master && git pull
The next time you open your System Response Widget you will see the resulting update... on closing, as per the usual it will clear the log file.
Sorry about the trouble if you were affected.