Default format.ps1xml not being properly used

PSVersion 5.1.18362.752

When issuing a get-process, I get output like the following:

Handles NPM(K) PM(K) WS(K) VM(M) CPU(s) Id SI ProcessName ------- ------ ----- ----- ----- ------ -- -- ----------- 2776 104 478080 513680 812 346.59 7964 2 AcroRd32
Note that there is no VM column listed anymore. If you examine the contents of DotNetTypes.format.ps1xml you will see that under the System.Diagnostics.ProcessModule there is formatting for this column that should appear. I don't know why it doesn't. If you make a copy of this ps1xml file to an alternate location and import it like:
Update-FormatData -PrependPath .\myformat.ps1xml
Then immediately, the display issue is fixed:
Handles NPM(K) PM(K) WS(K) VM(M) CPU(s) Id SI ProcessName ------- ------ ----- ----- ----- ------ -- -- ----------- 2776 104 478080 513680 812 346.59 7964 2 AcroRd32
Can't explain it. Don't understand it.

Help?

Crazy, I didn’t notice this yet. Mostly a bug.