Had this happen twice to me as well. Event viewer showing application hangs:
The program SoTGame.exe version 0.0.0.0 stopped interacting with Windows and was closed. To see if more information about the problem is available, check the problem history in the Security and Maintenance control panel.
Process ID: 4020
Start Time: 01d3c178dde32a61
Termination Time: 4294967295
Application Path: F:\WindowsApps\Microsoft.SeaofThieves2.74.9691.2_x648wekyb3d8bbwe\Athena\Binaries\UWP64\SoTGame.exe Report Id: 4de9192f-afcd-410c-8794-56c3bb839625
Faulting package full name: Microsoft.SeaofThieves_2.74.9691.2_x64_8wekyb3d8bbwe
Faulting package-relative application ID: AthenaClientShipping
Security and Maintenance shows:
Description
A problem caused this program to stop interacting with Windows.
Faulting Application Path: F:\WindowsApps\Microsoft.SeaofThieves_2.74.9691.2_x64__8wekyb3d8bbwe\Athena\Binaries\UWP64\SoTGame.exe
Problem signature
Problem Event Name: MoAppHang
Package Full Name: Microsoft.SeaofThieves_2.74.9691.2_x64__8wekyb3d8bbwe
Application Name: praid:AthenaClientShipping
Application Version: 0.0.0.0
Application Timestamp: 00000000
Hang Signature: d122
Hang Type: 4194304
OS Version: 10.0.16299.2.0.0.256.48
Locale ID: 1033
Additional Hang Signature 1: d122e3bf20b8abfdf4a90837c42bd439
Additional Hang Signature 2: c85a
Additional Hang Signature 3: c85a9e92a32748a2dd0d9ae67a9c78c4
Additional Hang Signature 4: d122
Additional Hang Signature 5: d122e3bf20b8abfdf4a90837c42bd439
Additional Hang Signature 6: c85a
Additional Hang Signature 7: c85a9e92a32748a2dd0d9ae67a9c78c4
Extra information about the problem
Bucket ID: 9883970c8d49d89513d332ddfa34ed36 (1428541435773513014)