Swift 5 Collection View INSIDE Container View

Please apply only after you read all the job description and you know you can do it! Objective : Populate/Refresh CollectionView INSIDE Container View Deadline : 26th of March I need a swift expert to check my code to fix and explain to me what am I missing or what I am doing wrong. In attach I have a picture that shows the scenario and I will provide the link to the project demo after. The scenario is simple : There is a ViewController embedded in a Navigation Controller. This ViewController has a Segmented Control and 3 ContainerViews "attached" to the Segmented Control. When the View Controller loads, I call a WebService that retrieves json data from a url. I parse that json data and I pass the objects to the 3 view containers that should be the data source for each view container. All the 3 view containers receive the data, it's all in the logs, but I cannot refresh the collection view inside that ContainerViews and this is the problem. The help that I need is to solve and to identify the WHY is not refreshing. Need to understand what I am doing wrong. The project demo will have only the first view container to serve as proof of concept, I will replicate after when its all done. The payment will be as follows with milestones created for the effect, won't be any other way : Project Start : 5 Euros Solution for Testing : 20 Euros Project Close : 5 Euros Please only apply if you accept all the above conditions, INCLUDING price, AND if you know how to solve the problem. If you do accept and want to apply, please start your proposal with this code : PM-WORK-265