I have encountered a problem while exporting new configuration to some of our pollers. The progress bar stayed blocked at 0%.There were no errors, no alerts, nothing.
The problem was a model service that was disabled (because it’s no longer used). So I had to reactivate it and disable for all the hosts configuration and it worked.
I think it would be a great to create an error log while exporting configuration. Like: Cannot export configuration because “X” reason (in my case, swap service was disabled while it is used in the current configuration)
