“Fatal Error Occured” with MacOS 15.4 Developer Beta 1

[DocT1973]

Has anyone else updated to the Mac OS Sequoia 15.4 developer beta and had issues with Makemkv? When I load v1.17.8, I get the message “FAtal error occurred, program will now exit.” This is even before the first “bounce” of the launch icon. MKV then loads. I can select a file to open a video file and finder will allow me to select a BDMV file, but then nothing happens.

I noticed that v 1.17.8 was not even trying to update. I deleted that version and downloaded v1.17.9 and installed it from scratch, but this does not fix the issue.

Is anyone else having this issue?

[DavoBR]

Has anyone else updated to the Mac OS Sequoia 15.4 developer beta and had issues with Makemkv? When I load v1.17.8, I get the message “FAtal error occurred, program will now exit.” This is even before the first “bounce” of the launch icon. MKV then loads. I can select a file to open a video file and finder will allow me to select a BDMV file, but then nothing happens.

I noticed that v 1.17.8 was not even trying to update. I deleted that version and downloaded v1.17.9 and installed it from scratch, but this does not fix the issue.

Is anyone else having this issue?

I'm using 1.17.6 with Sequoia 15.3.1 with no problems.

Was your setup working before updating to Sequoia 15.4?

[nicholfd]

I also test macOS betas and am a long time MakeMKV user.

On multiple macOS systems (Studio, MacBook Air & MacBook Pro), MakeMKV 1.17.8 was working perfectly yesterday, before upgrading macOS to the 15.4 developer beta (15.4 Beta (24E5206s) - first 15.4 beta, just released yesterday).

Today I am seeing the same behavior as the original author of this thread. Same behavior on all systems updated to the 15.4 developer beta.

Reinstall of 1.17.8 did not change the issue.

Just noticed MakeMKV 1.17.9 is available & has been since (1.2.2025). Seems my 1.17.8 installs have not been checking for updates for a bit.

Downloading 1.17.9, I noticed something else definitely related to the 15.4 developer beta - my Safari downloads location preference has been reverted to the default of ~/Downloads (on all my systems, I change this default to a Downloads directory in iCloud so Downloads on all my systems are "in sync".) Cursory review, and I do not notice any other Safari preferences reverted.

MakeMKV 1.17.9 sill errors out at launch. Image of the error dialog is linked. Image of the MakeMKV app, after closing error dialog, is linked - note it is "blank" and does not show the typical info, settings, drive contents & does not attempt to scan the drive contents (the drive is attached, powered on & has a new BR in it).

All of the executables in the MakeMKV app seem to run ok from the command line (note that `./makemkvcon` launches the GUI app with the error dialog & then the app window screenshots above):

Code: Select all

nicholfd@homer MacOS % ./makemkv
2025-02-22 11:07:51.604 makemkv[9974:805562] +[IMKClient subclass]: chose IMKClient_Modern
2025-02-22 11:07:51.604 makemkv[9974:805562] +[IMKInputSession subclass]: chose IMKInputSession_Modern
nicholfd@homer MacOS % ./makemkvcon 
Use: makemkvcon [switches] Command [Parameters]

Commands:
  info <source>
      prints info about disc
  mkv <source> <title id> <destination folder>
      saves a single title to mkv file
  backup <source> <destination folder>
      backs up disc to a hard drive
  f <args>
      run universal firmware tool
  reg <key string or file name>
      enter registration key into program

Source specification:
  iso:<FileName>    - open iso image <FileName>
  file:<FolderName> - open files in folder <FolderName>
  disc:<DiscId>     - open disc with id <DiscId> (see list Command)
  dev:<DeviceName>  - open disc with OS device name <DeviceName>

Switches:
  -r --robot        - turn on "robot" mode, see http://www.makemkv.com/developers
nicholfd@homer MacOS % ./mmccextr 
CCExtractor 0.88, Carlos Fernandez Sanz, Volker Quetschke.
Teletext portions taken from Petr Kutalek's telxcc
This is a reduced-functionality version optimised for DVD closed captions transcoding.
--------------------------------------------------------------------------
Originally based on McPoodle's tools. Check his page for lots of information
on closed captions technical details.
(http://www.theneitherworld.com/mcpoodle/SCC_TOOLS/DOCS/SCC_TOOLS.HTML)

This tool home page:
http://www.ccextractor.org
  Extracts closed captions and teletext subtitles from video streams.


         --version : Display current CCExtractor version and detailed information.
Error: (This help screen was shown because there were no input files)

Issues? Open a ticket here
https://github.com/CCExtractor/ccextractor/issues
nicholfd@homer MacOS % ./mmgplsrv 
nicholfd@homer MacOS % ./sdftool 
Error: Drive not specified
nicholfd@homer MacOS % 

macOS logs from a normal launch of the app (from the Dock), closing the error dialog, then closing the app window can be downloaded from here: macOS Logs.tgz

If there's any other information or testing that I can provide, please let me know.

Thanks!