watts_jim this issue remains unresolved and is the subject of ongoing diagnostics under a MS support ticket.
We remain on the October 2023 version of the gateway, as it is the last version to retain the ability to disable WebView2 in the GW configuration.
All attempts to update the GW to the latest version have failed with exactly the same error. In the last month, there have been 4 version updates to the GW software and we have tested them all with both the default GW NT service account and a user account with admin priviliges.
In the last week, with a completely new machine, we have been able to provide GW logs and Windows Performance Recorder (WPR) traces to the PBI support team (amongst a range of other GW production dataflow failures....) but have not had any response or resolution to those at this time.