# Problem loading FMOD Banks: Master (An invalid object handle was used) **URL:** \ **Category:** Unreal Engine\ **Tags:** ue4\ **Created:** [June 3, 2021, 5:04am UTC](https://qa.fmod.com/t/problem-loading-fmod-banks-master-an-invalid-object-handle-was-used/17285 "2021-06-03T05:04:53Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![joseph](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/joseph/32/264_2.png) [@joseph](https://qa.fmod.com/u/joseph)\ **Post date:** [June 4, 2021, 12:12am UTC](https://qa.fmod.com/t/problem-loading-fmod-banks-master-an-invalid-object-handle-was-used/17285/2 "2021-06-04T00:12:24Z")
> [@MarcoMarocco](#): > > After doing some work on the map with my PC I needed to switch the device for a few days, continuing my work on the FMOD project with a Macbook using Drive (yes, I have my FMOD project on Google Drive and continuously sync it with the app Backup and Sync so i can work on it with different devices). I can’t be sure, but I suspect this may be the cause of the problems you’re experiencing. FMOD Studio is not compatible with most cloud file synchronization services. It needs to regularly open handles to the various files in an FMOD Studio project in order to make changes to them while you are working on that project, and cloud-based file synchronization services also regularly open handles to the files of synchronized in order to synchronize them, and these two things can occasionally clash. If this is the cause of the issue, you should be able to avoid it by disabling automatic synchronization and instead manually synchronizing your files only when your FMOD Studio project is closed, or by using one of FMOD Studio’s source control integrations instead of Backup and Sync. --- _[View the full topic](https://qa.fmod.com/t/problem-loading-fmod-banks-master-an-invalid-object-handle-was-used/17285)._