Preview pane

Hello Everyone,

I recently upgraded from V8 to 11 and am still finding out about certain changes.

One thing I noticed that drives me mad is as part of the preview pane I have some emails with moving arrows / shadowns going from left to right and I have no idea

what this means and under what conditions this happens.

I am having the account tree on the left and the right hand side of the screen is split horizontally with messages at the top and the preview pane underneath. Mostly this

is unchanged to before but for some emails under conditions I am not clear on (maybe containing attachments?) there is another pane with a grey bar moving from left to right on repeat.

This is between the actual email and the Quick Reply Box at the bottom and nothing else in that field.

Is there any way to get rid of this behaviour?

--
Best regards,
Tom
using TheBat! 11.0.4.1 on Win 10 , 64bit

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Current version is 9.1.18 | 'Using TBUDL' information:
http://www.silverstones.com/thebat/TBUDLInfo.html