: If you are using a 60-day trial, ensure your key has not expired. You can request a new trial key with a different phone number if necessary at trial.vmix.com Do you know which version of vMix
If you recently moved vMix to a new machine, your license may have reached its activation limit. Log into the vMix Account Portal to deactivate old sessions before re-entering your key in the software.
Using a newer version of Title Designer with an older vMix installation.