Thanks for showing your code. At a glance I cannot find any suspicious codings which may cause changes UI for every fifth cell. I will take some time to run your code. Any additional info which helps testing your code would be welcome.

The getValue function returns two different types in the two classes, Thanks for showing your code. And your code revealed that if you define a combined entity, your code all things would be solved.

 In my previous code, optionString was supposed to be restaurantString. Then this line (44): optionString = optionString + currentOption + "\n" should be: optionString = optionString + "\n" + currentOption NO? Does that change how I should approach this in any way or not? Yes, it changes the best way you go.

The two classes have to be sperate. Can you explain why?

My Main.storyboard has a png background that works. When I change it to instead use the desired Launch Screen.png it also works, proving that the Launch Screen.png is good to use. Can you clarify how many images do you use? a png background in Main.storyboard, Launch Screen.png and IMG_1486.png? Without precise description of what you have done, readers cannot find what's wrong.

What settings can cause the black launch screen in this scenario? iOS cannot show some types of images. Have you checked if The png is fine for iOS? (Sorry, but I do not understand what you mean by I can point Main.storyboard.)

I don't believe there is anything wrong with the code but Xcode. I do believe there is something wrong with your code. Why have you changed line 23 and 24 from the original code? x: width * segment.line.x + xOffset, y: height * segment.line.y If you want to modify some points, all other points needs to be modified consistently. Only modifying this part is making your shape broken.

You expect self.view as an MTKView, but it actually is a plain NSView and that is causing the issue. How have you set up the storyboard (or nib) of the view controller?

Does that mean that this error is the result of the error I reported in another question, that has not yet been answered? Not sure, but it may be a bug of the framework you are using. Better visit the supporting site of it, I believe it is not a framework of Apple's.

In Android the OS automatically allocates a default folder for the app, where the file is automatically created. So I presumed that iOS works in a similar way? It depends on the framework you are using.

Not sure what do you mean by the "definition of the cell class"? In your case, the definition of SearchTweetsCell.

configfilename = 'geo-esp-train.cfg' I do not have experience about writing apps in Python, but isn't that pointing some place where app cannot touch?

What's configfilename?

Can you show your code causing the error?

Can you show enough code and clarify what you want to do? What are model.data and date.data? Are they Arrays of the same length? Or something else?