Splunk Cloud installation of Alert Manager 3.0.6 Start screen never appears - error "JSON reply had no payload value"

[shartwell1]

After installation of Alert Manager Enterprise 3.0.6 in Splunk Cloud, the Start screen never appears and gives error  "JSON replay had no payload value"  10 times.  

Q.  Anyone run into this error?  

[davidfaure]

Hello,  I have the same problem, can we do a rollback installation ? another idea ?

[shartwell1]

I attempted a rollback/reinstall but same result.  It appears to be related to the python version that the stack is using (in my case python2). Run the REST command and read the verbiage in the link below.  

https://docs.datapunctum.com/ame/ame-before-upgrading

Opened a case with support to determine if the stack can be upgraded to python3.  If not, we'll need to turn in a case to have them install AME v2.0.4 which still supports python2.
Hope this helps - best idea I have at the moment.