Efficiency Helper crashing when changing axis view on Mac

[Luperi2001]

Successfully read 971 TChannels from SummingCorrectionsHelper30564_000-009.root

GRSI [0] TBGSubtraction g(griffinGriffinEMixedSingleCrystal)
Selecting the x axis
Selecting gaussian peak
fPeak = 0xc892d7a30
(TBGSubtraction &) Name: fBGSubtraction2 Title: NOLINT(readability-else-after-return)
GRSI [1] Selecting the y axis

*** Break *** segmentation violation
[/usr/lib/system/libsystem_platform.dylib] _sigtramp (no debug info)
[/Users/lapoluperi/Desktop/GRSISort/lib/libTGUI.so] TBGSubtraction::DrawGateMarkers() /Users/lapoluperi/Desktop/GRSISort/libraries/TGUI/TBGSubtraction.cxx:731
[/Users/lapoluperi/Desktop/GRSISort/lib/libTGUI.so] TBGSubtraction::DrawGateMarkers() /Users/lapoluperi/Desktop/GRSISort/libraries/TGUI/TBGSubtraction.cxx:731
[/Users/lapoluperi/Desktop/GRSISort/lib/libTGUI.so] TBGSubtraction::ResetInterface() /Users/lapoluperi/Desktop/GRSISort/libraries/TGUI/TBGSubtraction.cxx:199
[/Users/lapoluperi/Desktop/GRSISort/lib/libTGUI.so] TBGSubtraction::AxisComboSelected() /Users/lapoluperi/Desktop/GRSISort/libraries/TGUI/TBGSubtraction.cxx:584
[/opt/local/libexec/root6/lib/root/libCling.6.36.04.so] TClingCallFunc::exec(void*, void*) (no debug info)
[/opt/local/libexec/root6/lib/root/libCore.6.36.04.so] TQConnection::SendSignal() (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] void TQObject::EmitVA<long [2]>(char const*, int, long const (&) [2]) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGComboBox::Selected(int, int) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGComboBox::ProcessMessage(long, long, long) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGFrame::HandleClientMessage(Event_t*) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGFrame::HandleEvent(Event_t*) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGClient::HandleMaskEvent(Event_t*, unsigned long) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGClient::ProcessOneEvent() (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGInputHandler::Notify() (no debug info)
[/opt/local/libexec/root6/lib/root/libCore.6.36.04.so] TUnixSystem::DispatchOneEvent(bool) (no debug info)
[/opt/local/libexec/root6/lib/root/libCore.6.36.04.so] TSystem::ProcessEvents() (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGClient::WaitForUnmap(TGWindow*) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGComboBoxPopup::PlacePopup(int, int, unsigned int, unsigned int) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGComboBox::HandleButton(Event_t*) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGFrame::HandleEvent(Event_t*) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGClient::HandleEvent(Event_t*) (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGClient::ProcessOneEvent() (no debug info)
[/opt/local/libexec/root6/lib/root/libGui.6.36.04.so] TGInputHandler::Notify() (no debug info)
[/opt/local/libexec/root6/lib/root/libCore.6.36.04.so] TUnixSystem::DispatchOneEvent(bool) (no debug info)
[/opt/local/libexec/root6/lib/root/libCore.6.36.04.so] TSystem::InnerLoop() (no debug info)
[/opt/local/libexec/root6/lib/root/libCore.6.36.04.so] TSystem::Run() (no debug info)
[/opt/local/libexec/root6/lib/root/libCore.6.36.04.so] TApplication::Run(bool) (no debug info)
[/opt/local/libexec/root6/lib/root/libRint.6.36.04.so] TRint::Run(bool) (no debug info)
[/Users/lapoluperi/Desktop/GRSISort/bin/grsisort] main /Users/lapoluperi/Desktop/GRSISort/src/grsisort.cxx:89
[/usr/lib/dyld] start (no debug info)
Root > zsh: segmentation fault grsisort SummingCorrectionsHelper30564_000-009.root

Describe the bug
After opening a file to then use TBGSubtraction, I want to change the x to y axis.
When I try to do this, everything crashes.

To Reproduce
On MacbookPro Intel (2023), March-version of GRSISort.

Expected behavior
I would expect to have x and y axis inverted.

[VinzenzBildstein]

Does this happen with other matrices (and other files) as well, or is it just this one matrix that is causing this issue? And have you tried putting the cout-statement into the code that I mentioned?

[Luperi2001]

This is what I was able to collect.
It seems to be happening for all the matrix files.

macOS Sequoia (Apr 2026), Xcode 21/Clang 21.0, ROOT 6.36.04 via MacPorts
GRSISort v4.0.0.5 from source

lldb prevents crash (timing change). Core dumps fail (library path issues).

I was having the same issues on the Linux machine, but found out that if I waited 30 seconds before switching the axis, then it worked fine. Obtained the same result if, instead of waiting, I just fitted one random peak and then switched.

Trying to reproduce it on Mac.

Tried to insert the cout as suggested, but failed to actually run it again. Working on it.