Beamer > blue line at left of frame > how to get rid of it

[Jürgen Spitzmüller]

Am Samstag, den 11.01.2020, 15:35 +0100 schrieb Wolfgang Engelmann:
> Jürgen, I am completely stuck. If I change something in my beamer 
> document, e.g. to reduce it to a minimal example, I get these blue 
> markings or crossed out text allover. 

Do you have Document > Change Tracking > Track Changes checked?

> Could I send it to you privately 

If the above does not help, yes.

Jürgen
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