# Known Issues
***
### Current
* [Updater: No Authorisation method provided](#updater-no-authorisation-method-provided)
* [DLL Fault](#dll-fault)
* [Spaces in paths](#spaces-in-paths)
* [Run out of storage](#run-out-of-storage)
* [Windows Defender false positive](#windows-defender-false-positive)
* [Firewall blocked](#firewall-blocked)
* [VPN support](#vpn-support)
* [Generate Markers Crash](#generate-markers-crash)
***
#### Updater: No Authorisation method provided
Example of the Error
The Marso Updater shipped with 25.1.0 had an authorisation issue that has been solved with 25.1.1
To resolve this issue, [download](https://app.m-xr.com) the latest version of the updater, copy it to your install folder, and run it directly. This should prompt you to login and install the latest version.
#### DLL Fault
Users may sometimes experience an application fault. This will not appear in the log and will look like the application has just closed without any further information. To confirm you can look in the event viewer and you should see an error like this:
```
Faulting application name: M-XR_Marso.exe, version: 0.0.0.0, time stamp: 0x67aa8eb2
Faulting module name: tcl86t.dll, version: 8.6.2.13, time stamp: 0x6547c47c
Exception code: 0x80000003
```
#### Resolution
To resolve just relaunch the application and continue. If any job was running during the crash it will have to be restarted.
***
#### Spaces in paths
Currently having spaces in paths is not supported. So most steps will fail if a path includes a space. This covers calibration and processing. As a solution for the time being it is recommended to move the data to a location where there are no spaces in the path.
***
#### Run out of storage
If the scratch directory drive fills up (due to Marso or other programs) then windows will throw a Storage Warning, and jobs in Marso will fail.
If the scratch directory is on the `C:` drive and there is insufficient free space, Marso will fail to launch.
#### Resolution
To resolve you must clear space on the drive, usually we aim for 250GB of free space. Then the program can be relaunched and job can be restarted safely.
***
#### Windows Defender false positive
Windows Defender has an AI based threat detection system that on some systems detects a portion of Marso as a threat. The threat should look like `Trojan:Script/Wacatac.B!ml`
#### Resolution
To resolve, you will need to add an exception on this path `%LOCALAPPDATA%/M-XR/Maestro/Unpack`
If you are unable to add an exception due to security policy please contact
***
#### Firewall Blocked
If you have your firewall blocked and set not allow any connections then Marso will crash and will not provide a clear error. Marso requires external internet connection to run in order to connect to our DRM system.
To resolve, add a whitelist to your firewall for the Marso program and any program in this directory `%LOCALAPPDATA%/M-XR/Maestro/Unpack`
You may also need to add exclusions for the endpoints Marso needs to connect to:
1. \* - HTTP/HTTPS (80/443) - License validation
2. \*.mongodb.net - TCP ports 27015-27017 - Database
3. \*.backblazeb2.com - HTTP/HTTPS (80/443) - Binary hosting
***
#### VPN Support
Currently based on our testing, Marso does not work with VPNs. They can tried at the user’s own risk but we do not expect them to work.
***
#### Generate Markers Crash
For Marso version 25.1.2, the Generate Markers button causes the application to crash. This, unfortunately, makes the markers inaccessible.
We have made the markers available here, whilst we work on a fix.
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