Vending machine items fail to appear after rapid E/F tab switching

### Build version
Not specified

### Issue Description
After switching quickly between tabs E and F in the vending machine, not all items appear on screen. The items remain partially hidden until the user clicks once more, which then loads them fully.

### STR (Steps to Reproduce)
1. Open the app
2. Go to the vending machine
3. Click or tap E and F quickly multiple times
4. Stop
5. Check the vending machine

### Expected Result
All vending machine items should be fully visible after switching tabs, regardless of how fast the user switches between them.

### Actual Result with evidence
Some items are missing from the screen after rapid tab switching. Clicking one more time loads all items correctly.

### Reproduction
Always (Reproduction Index: 100%)

### Operative system and additional Notes
Windows

**Related issues:** #9509 (stale atlas PNG cache causing broken vending machine UI on Windows), #9515 (text overlap on sold-out vending machine item UI)

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Reported by daf
Requested by Dawid Krajewski (<@U079GRD9WTZ>)