Error in source estimation after the installation of the last version (gen2026)

Why does my source script stop working after changing the Brainstorm version, and why do I get the following error?

After updating Brainstorm, the source analysis script that previously worked no longer runs and returns this error:

* Error: [process_headmodel] Sources > Compute head model
** Line 724: Unrecognized field name "FemFile".
**
** Call stack:
** > bst_headmodeler.m at 724
** > panel_headmodel.m>ComputeHeadModel at 704
** > panel_headmodel.m at 27
** > process_headmodel.m>Run at 239
** > process_headmodel.m at 24
** > bst_process.m>Run at 236
** > bst_process.m at 38
** > panel_process1.m>RunProcess at 138
** > panel_process1.m at 26
** > gui_brainstorm.m>CreateWindow/ProcessRun_Callback at 781
** > bst_call.m at 28
** > gui_brainstorm.m>@(h,ev)bst_call(@ProcessRun_Callback) at 301
**
** File: S92_dellil/POINT_B/data_A_-_Stimulation_average_260119_1413.mat

What changes in the newer Brainstorm version could cause this issue, and how can I adapt my script to make it compatible?

Thanks,

Romina

Hello Romina,

Thank you for reporting this issue. It was caused by a typo in last Friday update.

Please update your Brainstorm instance to 19-Jan-2026 to have it solved. Commit: e785203
There is not need to modify anything on your code.

Best,
Raymundo

Thanks!