devsk wrote:How is it possible that a minor upgrade breaks something as simple as the ability to resume from an old snapshot?
That shouldn't happen, at least not between minor versions. It's classified as a bug. Is this reproducible?
devsk wrote:Is there a manual way to make this work?
Andy gave you the proper directions; downgrade to whatever version you were using, shut the VM down normally and then upgrade VirtualBox.
But, before you do that, the developers might be interested in taking a look at your saved state and the accompanying "VBox.log". So, keep a backup of your ".sav" file and attach a ZIPPED VBox.log, if you can, before downgrading/restoring/shutting-down/upgrading.
andyp73 wrote:An upgrade, however minor, may change that due to new features / fixes / regressions / inadvertently added bugs!
That was exactly my thinking about a week ago, when I learned that this is the case between major revisions. A 5.2.4 to a 5.2.6 problem, is something worth taking a look at...