Remove dashboard widgets 1.0.6 does not satisfy update notifications v2.0.1 and it nags for update. Even though I have manually installed v1.0.6 update notifications still thinks v1.0.2 is installed.
When attempting to allow the autoupdate to occur anyway, an error is returned that the upgrade package is unavailable.
I waited a couple of days to report this in case something needed to settle in, but no change as of today.
When this series of events happened on another plugin Aaron discovered that the header version number in the plugin file had not been updated and was triggering these issues.