Hi there! I understand you're having trouble merging blocks in the Tile Family game on your iPhone with iOS 18.7. Just to be sure, are you saying the blocks are already all filled on the board but you can't perform any merging? Could you tell me if the blocks that you want to merge are identical and adjacent, or if the game simply won't let you drag or combine any blocks at all?

Sometimes the issue can be due to a small glitch in the app or full game progress states. Meanwhile, let me guide you through some steps that often help with merge-block issues in Tile Family:

1. Restart the Game: First, close the app completely (swipe up in the app switcher) and relaunch it. This refreshes the game state.

2. Clear App Cache/Data: Although iOS doesn't have a direct cache clear option like Android, you can try logging out and back into your account if applicable or reinstall the app to clear any corrupted temporary data which might prevent merges.

3. Check for Updates: Make sure Tile Family is updated to the latest version from the App Store. Sometimes fixes for such bugs come through app updates.

4. Verify Game Rules: Some levels or game scenarios restrict merging when the board is full or certain blocks are locked. Take a moment to check if the blocks you are trying to merge meet the game's merging conditions—usually they need to be the same block type and adjacent or close on the board.

5. Try Moving Blocks: Sometimes moving one block away and then trying to merge again helps clear any placement bugs.

If you have already tried these or the issue persists despite the blocks matching and being mergeable, please let me know exactly what happens when you try to merge. For example, do the blocks not move, does the game show an error, or something else?

We can also consider reinstalling the app if no progress is made or check if there’s any ongoing issue reported with the game servers.

Are you ready to try these steps? Let me know how it goes or if you have any other details!