I see the following difference between Designer and runtime:
Your camera URL uses http and WebIQ Designer uses http protocol, too.
=> The camera content is shown in iframe
My interpretation, the different http URLs are not blocked by browser security (see remark of webiq-sk regarding cross-origin below)
When you start WebIQ runtime from the ctrlX UI, it uses https ( via the reverse proxy of the ctrlX)
=> The camera content is NOT shown in iframe (browser blocks iframe content because of different protocols http <=> https)
You can start WebIQ runtime with http protocol via the link: http://192.168.1.11:10123/<your-project-name>/ to use http protocol for runtime & camera.
I'll test it to see if my assumptions are correct. However, the use of HTTP in industrial environments is no longer appropriate, as it is too insecure. This should be looked into more closely in the future. Especially since I can well imagine that browser security restrictions for HTTP could also become more stringent.