Recording HTTP requests using jmeter/charles

We need to load test our multiplayer game using jmeter.

Came up with different scenarios how our users might use our game, would like to record the scenario as a jmx file and run it back.

But, Jmeter recording template only records 1 http request out of around 45. Charles does the same. These are pure http requests (not https).

[Edit: only the requests which return image files (png/jpg) are being shown. All the other requests which have json response do not show up on jmeter or charles.]

Any advice ?