Problem with binary download via API in Jan 2020 PBIRS?

[Anonymous]

Previously working API calls seem not to be working against a Jan 2020 (1.6.7327.3007) server - this is fine:

Invoke-RESTMethod -Uri "http://server/Reports/api/v2.0/CatalogItems(Path='/lib/report')" -Method GET -UseDefaultCredentials

but the call to get the binary content fails:

 Invoke-RESTMethod -Uri "http://server/Reports/api/v2.0/CatalogItems(Path='/lib/report')/Content/`$value" -Method GET -ContentType "application/octet-stream" -UseDefaultCredentials

error is:

Invoke-RESTMethod : {
"error":{
"code":"","message":"No HTTP resource was found that matches the request URI
'http://server/Reports/api/v2.0/CatalogItems(Path='/lib/report')/Content/$value'.","innererror":{
"message":"No action was found on the controller 'CatalogItemsController' that matches the
request.","type":"","stacktrace":""
}
}
}

Same calls seem to work fine against September 2019 version server. Any ideas ?

[Anonymous]

Seems to be a bug:

https://community.powerbi.com/t5/Report-Server/PBIRS-January-2020-API-Issue