# Application is unresponsive
**URL:** https://community.mp3tag.de/t/application-is-unresponsive/71474
**Category:** Mac
**Created:** [June 21, 2026, 8:06am UTC](https://community.mp3tag.de/t/application-is-unresponsive/71474 "2026-06-21T08:06:00Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Andy1](https://community.mp3tag.de/u/Andy1)
#### Post date: [June 21, 2026, 8:06am UTC](https://community.mp3tag.de/t/application-is-unresponsive/71474/1 "2026-06-21T08:06:00Z")
Using Mp3tag for Mac for re-titling MP4 files. Since downloading latest version (1.13.0), app is constantly freezing with spinning wheel of death and message 'Application is unresponsive'. No problems with previous version.
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [June 21, 2026, 8:13am UTC](https://community.mp3tag.de/t/application-is-unresponsive/71474/2 "2026-06-21T08:13:20Z")
Could the conditions described in this thread be the cause?
> [@Bug: Pressing Cancel in the "Reading files" dialog breaks the add functionality](https://community.mp3tag.de/t/bug-pressing-cancel-in-the-reading-files-dialog-breaks-the-add-functionality/71404):
>
> Issue: If you add files to Mp3tag, and press the Cancel button in the dialog that opens, the functionality to add things to Mp3tag stops working until the application is restarted. Steps: Add any number of files to Mp3tag, resulting in the "Reading files dialog". Press the Cancel button in the "Reading files" dialog. (To make the dialog stay for a longer periode, add a long number of files to Mp3tag, or a file that is present in your favorite cloud drive service but not physically downloa…
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [June 21, 2026, 8:35am UTC](https://community.mp3tag.de/t/application-is-unresponsive/71474/3 "2026-06-21T08:35:20Z")
What kind of MP4 files are you working with? Are those large video files? Are those stored on your local disk or and external/network drive?
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### Author:  [@Andy1](https://community.mp3tag.de/u/Andy1)
#### Post date: [June 21, 2026, 11:36am UTC](https://community.mp3tag.de/t/application-is-unresponsive/71474/4 "2026-06-21T11:36:00Z")
External drive. I didn't seem to have any problems with the previous version.
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### Author:  [@Andy1](https://community.mp3tag.de/u/Andy1)
#### Post date: [June 21, 2026, 11:38am UTC](https://community.mp3tag.de/t/application-is-unresponsive/71474/5 "2026-06-21T11:38:16Z")
Sorry, yes, quite large files (up to 2 or 3GB).
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [June 21, 2026, 2:28pm UTC](https://community.mp3tag.de/t/application-is-unresponsive/71474/6 "2026-06-21T14:28:55Z")
How long does it take to copy the file to your local drive and back again?
If the padding is too small for the new tag data, then the file has to be rewritten. And that may take a while.
If you have already tagged files and the changes in the tag data are only small ones, then the padding might be sufficient and the file can stay as it is and only the tag part gets updated.
Check if this is the case.