Outlook 365 Scroll Down Bar Not Visible (Black)

This exact behavior is occurring for users in our office now as well.  We can recreate the issue 100% of the time by doing the following:

1)  Click your sent items folder

2)  Search for any term

3)  Click on any of the search results so that it shows up in the preview window

4)  Click inbox - you now have a black bar in place of the scroll bar between your inbox window and preview window.

As others have noted, you can resolve the issue by manually resizing the preview pane even 1 pixel after each time it happens

This behavior did not begin for us until we received the update to Version 1801 (Build 9001.2144).

We are on Windows 10 Professional 

Office 365 is 32-bit

All addons are disabled

Any help would be appreciated.

I tested this following the same procedure as listed above and it is also 100% repeatable on my system.  You can also "fix" the problem by clicking on any other folder and then back on the Inbox.

I have verified KevinD-EB's Outlook behaviour is the same on mine.  Running the same build.  We were getting the black scrollbar just by switching folder.  After disabling the Teams addon, the problem looked fixed, but if I follow Kevin's steps above, it is repeatable in our environment as well.

This exact behavior is occurring for users in our office now as well.  We can recreate the issue 100% of the time by doing the following:

1)  Click your sent items folder

2)  Search for any term

3)  Click on any of the search results so that it shows up in the preview window

4)  Click inbox - you now have a black bar in place of the scroll bar between your inbox window and preview window.

As others have noted, you can resolve the issue by manually resizing the preview pane even 1 pixel after each time it happens

This behavior did not begin for us until we received the update to Version 1801 (Build 9001.2144).

We are on Windows 10 Professional 

Office 365 is 32-bit

All addons are disabled

Any help would be appreciated.

I tested this following the same procedure as listed above and it is also 100% repeatable on my system.  You can also "fix" the problem by clicking on any other folder and then back on the Inbox.

This is fully replicable with our users as well. disabling the teams add-in seems to stop the bar from disappearing\going black in most circumstances, but not when those steps are followed- which is pretty common.

This exact behavior is occurring for users in our office now as well.  We can recreate the issue 100% of the time by doing the following:

1)  Click your sent items folder

2)  Search for any term

3)  Click on any of the search results so that it shows up in the preview window

4)  Click inbox - you now have a black bar in place of the scroll bar between your inbox window and preview window.

As others have noted, you can resolve the issue by manually resizing the preview pane even 1 pixel after each time it happens

This behavior did not begin for us until we received the update to Version 1801 (Build 9001.2144).

We are on Windows 10 Professional 

Office 365 is 32-bit

All addons are disabled

Any help would be appreciated.