Running 12.50 in a VM under Windows Server 2012 R2 Datacenter with 6gb RAM. SInce upgrading from 12.02 to 12.50 (5 days ago) I am unable to get anything to record in the new installation. Using WEB/HTTP protocol, once recorder starts, the IE browser just returns "This page cant be displayed" error. On clicking 'Fix Connection Problems' in the browser display, it just says there are no connection issues. No actual errors are logged in the log file so I have no idea where LR has an issue.
Running scripts that worked under 12.02, I got 404 not found returned, but after faffing around with the proxy settings and set the browser emulation to IE 10 it seemed to fix the re running issues.
Wierd thing is I can connect to the affected URL's outside LoadRunner using IE, so IE seems to work OK but wont connect in record mode. This is really holding me up.