The flexform property [configuration][data][general][lDEF][containerName][vDEF] would not allow hyphens to be entered and saved in the container's name due to the <eval> setting in Configuration/FlexForms/AzureStorage.xml.
Possible solution:
Either remove alphanum from the eval property or rather make it alphanum_x. The latter should work at least from 6.2 on to 8.7.
The flexform property
[configuration][data][general][lDEF][containerName][vDEF]would not allow hyphens to be entered and saved in the container's name due to the<eval>setting inConfiguration/FlexForms/AzureStorage.xml.Possible solution: Either remove
alphanumfrom the eval property or rather make italphanum_x. The latter should work at least from 6.2 on to 8.7.