Error in Visio update 2506 prevents viflow from starting
With version 2506, Microsoft has released an update for Visio, which is currently only available through the Current Channel (Preview).
If this version 2506 is installed, the start screen appears when viflow starts, but then disappears again and viflow does not open.
This issue only affects users who have subscribed to the preview of the current update channel for Microsoft Office 365 (possibly also Visio 2021).