Troubleshooting a Selection Screen in FMX for iPad

Selection screens built with FMX on iPad are often used to merge different workflows or choose the prompt they want to run. When the screen does not behave as expected&#x2014;such as taps not registering, selections appearing in the wrong place, or the layout looking distorted&#x2014;there are several key areas to review before concluding that something is wrong with the system.This guide walks through the most important troubleshooting steps to help you quickly identify and fix the problem.<hr><h2 dir="ltr" id="1-verify-the-ios-version">1. Verify the iOS Version</h2>One of the most common causes of malfunction is running the app on an unsupported iOS version.<h3 dir="ltr" id="what-to-check">What to Check</h3>FMX selection features for iPad require:&#x2705; iOS 18 or higherIf the device is running iOS 16 or 17, the interface may:<ul><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Fail to register touch input correctly</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Render background media design incorrectly</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Misalign selection zones</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Crash or freeze during interaction</li></ul><h3 dir="ltr" id="how-to-confirm">How to Confirm</h3>On the iPad:<ol><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Open Settings</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Tap General</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Select About</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Check the iOS Version</li></ol>If it is below 18, update the device before continuing troubleshooting.<hr><h2 dir="ltr" id="2-confirm-the-clickable-areas-are-positioned-correctly">2. Confirm the Clickable Areas Are Positioned Correctly</h2>If users can see the screen but cannot tap or select the correct areas, the problem is often related to how the clickable areas were placed during setup.<h3 dir="ltr" id="possible-symptoms">Possible Symptoms</h3><ul><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Tapping a box selects the wrong option</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Nothing happens when an area is pressed</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Touch works only in unexpected parts of the screen</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Selections appear offset from the visuals</li></ul><h3 dir="ltr" id="what-to-review">What to Review</h3>In FMX:<ul><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Re-open the multi-selection screen editor</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Inspect each clickable area</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Make sure every clickable area lines up visually with the buttons or images shown on the screen</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Confirm the area was not accidentally resized or shifted</li></ul>If the design was copied from another workflow, the coordinates may no longer match the iPad display.<img src="https://attachments.gorgias.help/JEmYL2naMXn6oMgQ/hc/bgJ1Q6QrLw2vXKOM/2026020207-54f93871-8320-4c8c-b517-962a757603f6-89a96452-73c3-42ba-bbf5-f8971bcf32a0.png" width="624" height="383" class="fr-fic fr-dii"><hr><h2 dir="ltr" id="3-check-the-aspect-ratio-ipad-is-34-not-916">3. Check the Aspect Ratio: iPad is 3:4, not 9:16</h2>Another frequent cause of selection issues is an incorrect screen ratio.Our Selection Screen Editor default is&#xA0;9:16, which is typical for phones or vertical displays. However, iPads use a&#xA0;3:4 aspect ratio. If the Selection Screen was created for 9:16 and then deployed to an iPad, the visual layout may scale&#x2014;but the touch zones may not.<h3 dir="ltr" id="why-this-matters">Why This Matters</h3>When the ratio is wrong:<ul><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Background media stretch or shrink</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Buttons move visually</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Touch areas stay in their original positions</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Selections no longer line up</li></ul>This creates the illusion that the screen is broken, when in reality the coordinates are simply mismatched.<h3 dir="ltr" id="what-to-do">What to Do</h3><ul><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Edit the Selection Screen in the Workflow you are using</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Change the Expected Aspect Ratio to 3:4</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">Save and re-sync the workflow to the FMX iPad</li></ul>Always design and test multi-selection screens specifically for the device type that will be used at the event.<hr><h2 dir="ltr" id="4-best-practices-to-avoid-issues-at-events">4. Best Practices to Avoid Issues at Events</h2>To prevent failures during live events:<ul><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2705;&#xA0;Test the workflow</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2705;&#xA0;Confirm the iOS version before deployment</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2705; Avoid reusing phone-ratio layouts on tablets</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2705; Double-check selection zones after any design change</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2705; Perform a full sync after updating your workflow</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2705; Run multiple tap tests in every corner of the screen</li></ul>Spending a few minutes validating these details ahead of time can save hours of troubleshooting on-site.<hr><h2 dir="ltr" id="final-checklist">Final Checklist</h2>Before an event, confirm:<ul><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2714; iPad is running iOS 18 or higher</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2714;&#xA0;Multi-selection areas align with visuals</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2714; Selection Screen Editor uses a 3:4 aspect ratio</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2714; Layout was tested directly on the device</li><li dir="ltr" style="text-decoration: none; font-family: Arial, Helvetica, sans-serif;">&#x2714; Latest workflow version is synced on your FMX iPad</li></ul>

How to Troubleshoot a Selection Screen in FMX for iPad

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