After long & slow propagation & trying to freeze AE froze; rebooted file completely gone

Ran the Roto Brush tool on video.  Propagation completed (hours long slow processing).  Saved (auto-save on too).  Selected Freeze and hung at about 58 of XXXX.  Memory on the system was down to @ 10-12%.  Could not close AE.  Closed everything else on the computer, but AE would not respond.  UGH  Rebooted.  Returned to AE.  The file was completely empty UGH 

My System info:
    Application: After Effects v23.6.0.62
    OS: Windows v10.0.22621, RAM: 95.72 GB GB, CPUs (logical): 36

OS Name Microsoft Windows 11 Pro

Processor Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz, 3000 Mhz, 18 Core(s), 36 Logical Processor(s)

Adapter Description NVIDIA RTX A4000 Driver Version 31.0.15.3742

Installed RAM: 95.72 GB Current RAM Usage: 2.39 GB Allowed RAM Usage: 71.72 GB

Process ID Application Name Min Needed Memory Max Usable Memory Max Allowed Memory Current Memory Current Priority
10748 Team Projects Local Hub 0.00 0.00 0.00 0.00 3 - Low
2796 After Effects 1.00 95.72 71.72 2.39 1 - High

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