In this case, please copy your issue summary details to a notepad, log out, clear browser cache+cookies, log in, and try re-entering the case. Be sure to include the build 10540 for both Server and Console build fields. These fields are mandatory even with ACS issues to track support case volumes for particular builds as releases are rolled out.
The build number can be found by appending '/r/test' to your instance URL and loading this page in a browser. For example: https://<tenant>.campaign.adobe.com/r/test.
The result will be something like: <redir status='OK' date='2019-10-02 14:23:25.588-04' build='10540' minver='0' instance='<tenant>_mkt_prod1' sourceIP='xxx.xxx.xx.xxx' host='<tenant>campaign.adobe.com' localHost='<tenant>-mkt-prod1-1'/>
I've highlighted the build for your reference.
ACS builds typically start with 105xx and are 5 digits long while ACC builds will start with 90/89/88/87xx and be 4 digits long. You can use the same build number for the console/server build number when opening tickets with support.