opening large files (>4gb) causes a crash

[Gale]

Hello, all. I am trying to open NIFTI (.nii) files of various sizes on ITK-SNAP 4.2.2 (Linux).

These files are all subsets of the same .nii stack, just containing different numbers of slices (e.g. 50-slice subset is a 3GB .nii file, 100-slice subset is 6GB)

I can open files that are 3.6 GB and below but files 5 GB and above causes the program to crash with the below errors:

ITK-SNAP: Segmentation fault

BACKTRACE:
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x1095714)[0x5567bfac8714]
/lib/x86_64-linux-gnu/libc.so.6(+0x45330)[0x14ab6f68a330]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x3c2b560)[0x5567c265e560]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x3c34363)[0x5567c2667363]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x3c35097)[0x5567c2668097]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x385d8c5)[0x5567c22908c5]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x2016a8a)[0x5567c0a49a8a]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x1e2bdc3)[0x5567c085edc3]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x12d6579)[0x5567bfd09579]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x10aa642)[0x5567bfadd642]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x10aab0c)[0x5567bfaddb0c]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN7QWizard4nextEv+0x152)[0x14ab71651582]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Core.so.6(+0x1ba078)[0x14ab6fcc2078]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN15QAbstractButton7clickedEb+0x32)[0x14ab714ee932]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(+0x29eb7a)[0x14ab714eeb7a]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(+0x2a0650)[0x14ab714f0650]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN15QAbstractButton17mouseReleaseEventEP11QMouseEvent+0xee)[0x14ab714f08ce]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN7QWidget5eventEP6QEvent+0x19e)[0x14ab71425c1e]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0x82)[0x14ab713d2012]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x430)[0x14ab713da940]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x109cf73)[0x5567bfacff73]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Core.so.6(_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent+0x11a)[0x14ab6fc656da]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN19QApplicationPrivate14sendMouseEventEP7QWidgetP11QMouseEventS1_S1_PS1_R8QPointerIS0_Ebb+0x1e0)[0x14ab713d9c90]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(+0x1e7ae1)[0x14ab71437ae1]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(+0x1ea74b)[0x14ab7143a74b]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0x82)[0x14ab713d2012]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x109cf73)[0x5567bfacff73]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Core.so.6(_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent+0x11a)[0x14ab6fc656da]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Gui.so.6(_ZN22QGuiApplicationPrivate17processMouseEventEPN29QWindowSystemInterfacePrivate10MouseEventE+0x790)[0x14ab70994670]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Gui.so.6(_ZN22QWindowSystemInterface22sendWindowSystemEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0xac)[0x14ab709ec20c]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6XcbQpa.so.6(+0x577fa)[0x14ab6b5477fa]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x5d5c5)[0x14ab6eba25c5]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0xbc737)[0x14ab6ec01737]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x33)[0x14ab6eba1a63]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Core.so.6(_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0x6a)[0x14ab6ff0c6da]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Core.so.6(_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE+0x1a3)[0x14ab6fc71023]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN7QDialog4execEv+0x1c5)[0x14ab71619585]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x10b83ac)[0x5567bfaeb3ac]
/opt/itksnap-4.2.2/lib/snap-4.2.2/ITK-SNAP(+0x1170181)[0x5567bfba3181]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Core.so.6(+0x1ba01f)[0x14ab6fcc201f]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Gui.so.6(_ZN7QAction9triggeredEb+0x32)[0x14ab70d697b2]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Gui.so.6(_ZN7QAction8activateENS_11ActionEventE+0xe9)[0x14ab70d6c409]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Core.so.6(+0x1ba078)[0x14ab6fcc2078]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN15QAbstractButton7clickedEb+0x32)[0x14ab714ee932]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(+0x29eb7a)[0x14ab714eeb7a]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(+0x2a0650)[0x14ab714f0650]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN15QAbstractButton17mouseReleaseEventEP11QMouseEvent+0xee)[0x14ab714f08ce]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN7QWidget5eventEP6QEvent+0x19e)[0x14ab71425c1e]
/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0x82)[0x14ab713d2012]

/opt/itksnap-4.2.2/lib/snap-4.2.2/libQt6Widgets.so.6(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x430)[0x14ab713da940]

I thought it was a memory issue but the workstation has 140 GB free RAM so I highly doubt it. Other specs for your reference: 2x Intel Xeon Gold 6226R (16 Core) CPU; NVIDIA RTX6000 GPU (24GB GDDR6 ECC memory) 

I would like to open a ~60 GB file size at once but opening a 5 GB file is already crashing the software so I am uncertain how feasible this is. 

Would anyone know what the issue is and how I could solve it?

Would appreciate any help at all. 

Warm regards,

Gale