Error while exporting entities with "pac data export" and "pac tool cmt"

[srbonham1]

Im facing this issue on a 64 bit system. At the very end of the export, I get the following error as cmt converts the data to data.xml file:

Command: pac data export -env https://xxxxxxx.crm.dynamics.com -v -df .\Downloads\prod_export.zip -sf "D:\prod_setup.xml" -o

`
Entity Export Process Complete
Writting output file : C:\Users\srbonham1\AppData\Local\Temp\wml5zczf.wa3\data.xml
Message: Exception Raised when Serializing Microsoft.Xrm.Tooling.Dmt.DataMigCommon.DataModel.Data.entities
Source : mscorlib
Method : CreateStringFromEncoding
Date : 3/22/2025
Time : 7:41:22 PM
Error : Exception of type 'System.OutOfMemoryException' was thrown.
Stack Trace : at System.String.CreateStringFromEncoding(Byte* bytes, Int32 byteLength, Encoding encoding)
at System.Text.UTF8Encoding.GetString(Byte[] bytes, Int32 index, Int32 count)
at Microsoft.Xrm.Tooling.Dmt.DataMigCommon.Utility.Helper.Serialize[T](Object objToSerialize)

Failed to create output file`

Im exporting around 360K records.

36 Entities

Version:
Microsoft PowerPlatform CLI
Version: 1.39.3+g0f45f92
64 bit version

Windows 10, 64 Bit.

Machine has 128GB. Theres around 93GB available at the time the crash occured.