Passolo 2018 installed on Windows 11 crashes on import/export

We've had to reinstall Passolo 2018 on new Windows 11 laptops. The same issue is happening for the whole team:

When we open an existing project and try to import or export an SDLXLIFF, Passolo crashes. This especially happens when we select the "SDLXLIFF" format from the list and click "Settings".

We have an IT tech who says that this DLL is crashing: Sdl.FileTypeSupport.Bilingual.SdlXliff.XmlSerializers.dll

We are using Passolo Collaboration Editiong 2018, v 

We have made sure that all system requirements were installed on each computer (i.e. .Net Frameworks)

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  • This is the event viewer info we get from the Passolo crash:

    Faulting application name: psl.exe, version:, time stamp: 0x6143329f
    Faulting module name: clr.dll, version: 4.8.9232.0, time stamp: 0x65efb9c4
    Exception code: 0xc00000fd
    Fault offset: 0x004593aa
    Faulting process id: 0x0x50A4
    Faulting application start time: 0x0x1DAA1579C5686CE
    Faulting application path: C:\Program Files (x86)\SDL\SDL Passolo\SDL Passolo 2018\psl.exe
    Faulting module path: C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
    Report Id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
    Faulting package full name: 
    Faulting package-relative application ID: 
    - <Event xmlns="">">
    - <System>
      <Provider Name="Application Error" Guid="{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}" /> 
      <TimeCreated SystemTime="2024-05-08T14:54:56.3036720Z" /> 
      <Correlation /> 
      <Execution ProcessID="11336" ThreadID="23736" /> 
      <Security UserID="S-1-12-1-2896233390-1083852996-1843357109-2723805941" /> 
    - <EventData>
      <Data Name="AppName">psl.exe</Data> 
      <Data Name="AppVersion"></Data> 
      <Data Name="AppTimeStamp">6143329f</Data> 
      <Data Name="ModuleName">clr.dll</Data> 
      <Data Name="ModuleVersion">4.8.9232.0</Data> 
      <Data Name="ModuleTimeStamp">65efb9c4</Data> 
      <Data Name="ExceptionCode">c00000fd</Data> 
      <Data Name="FaultingOffset">004593aa</Data> 
      <Data Name="ProcessId">0x50a4</Data> 
      <Data Name="ProcessCreationTime">0x1daa1579c5686ce</Data> 
      <Data Name="AppPath">C:\Program Files (x86)\SDL\SDL Passolo\SDL Passolo 2018\psl.exe</Data> 
      <Data Name="ModulePath">C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll</Data> 
      <Data Name="IntegratorReportId">xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx</Data> 
      <Data Name="PackageFullName" /> 
      <Data Name="PackageRelativeAppId" />