# Packing FMOD Banks in Unreal
**URL:** https://qa.fmod.com/t/packing-fmod-banks-in-unreal/21676
**Category:** Unreal Engine
**Tags:** ios, ue4, cpp
**Created:** [May 29, 2024, 12:09pm UTC](https://qa.fmod.com/t/packing-fmod-banks-in-unreal/21676 "2024-05-29T12:09:45Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@pigeon55](https://qa.fmod.com/u/pigeon55)
#### Post date: [May 29, 2024, 12:09pm UTC](https://qa.fmod.com/t/packing-fmod-banks-in-unreal/21676/1 "2024-05-29T12:09:45Z")
Hello. I meet problem in packaged-unreal project with ios platform.
After changed some fmod event and rebuild fmod bank, we made a patch and hot fix project but the new change not work in ios platform.
> [@Possible deadlock when packaging FMOD banks in Unreal pak Files](https://qa.fmod.com/t/possible-deadlock-when-packaging-fmod-banks-in-unreal-pak-files/14960/1):
>
> An issue has been discovered where deadlocks may occur at runtime when FMOD is loading content from signed UE4 pak files while UE4 is simultaneously loading assets from the same pak file. This issue affects integration versions up to and including 1.10.15 and 2.00.03. This issue can be avoided by modifying your UE4 project settings. Simply remove the FMOD bank output directory from the “Additional non-asset directories to package” list and add it to the “Additional non-asset directories to copy…
Does this problem fixed?
Can we use pak to hot fix fmod change?
Thank you.
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### Author:  [@Leah\_FMOD](https://qa.fmod.com/u/Leah_FMOD)
#### Post date: [June 4, 2024, 6:06am UTC](https://qa.fmod.com/t/packing-fmod-banks-in-unreal/21676/2 "2024-06-04T06:06:31Z")
Hi,
Yes, problem that you linked has been resolved.
Can I get you to elaborate on what you mean by “the new change not work in ios platform” - what specifically is the issue on iOS? Are you able to retrieve any UE/FMOD logs from iOS when the issue occurs? If so, please post the logs here so I can take a look.
Also, what are the full version numbers of FMOD and Unreal that you’re using?
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### Author:  [@pigeon55](https://qa.fmod.com/u/pigeon55)
#### Post date: [June 4, 2024, 6:26am UTC](https://qa.fmod.com/t/packing-fmod-banks-in-unreal/21676/3 "2024-06-04T06:26:57Z")
UE hide content dir in ios package,I can’t update bank files by patch.
UE version is 4.27 FMOD 2.02.10.
IIs this problem fixed in this version?If the problem is resoved,I can use pak to do this.
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### Author:  [@Leah\_FMOD](https://qa.fmod.com/u/Leah_FMOD)
#### Post date: [June 6, 2024, 4:03am UTC](https://qa.fmod.com/t/packing-fmod-banks-in-unreal/21676/4 "2024-06-06T04:03:24Z")
Yes, the deadlock problem you linked has been fixed, so I would recommend trying to use a pak to patch your banks. If that doesn’t work, please let me know.