I had the same issue after the theme updates. I tried to work it around by 
evaluating the button's action manually, but that didn't work out. The 
changes were not merged. Finally, I decided to load the new package and 
reverted what I wanted to keep. Since then merging has started to work 
again.

Levente

On Wed, 3 Aug 2016, karl ramberg wrote:

> Button did not activate when I did the right actions either, so I guess something was seriously wrong. 
> Hopefully you fixed that :-)
> 
> Best,
> Karl
> 
> On Wed, Aug 3, 2016 at 2:24 PM, marcel.taeumel <Marcel.Taeumel at hpi.de> wrote:
>       Karl Ramberg wrote
>       > Anybody else seen this issue?
>       > Merge button not present so I can't merge in changes :-(
>       >
>       > Best,
>       > Karl
>       >
>       >
>       >
>       >
> > merge.PNG (28K)
> > &lt;http://forum.world.st/attachment/4909328/0/merge.PNG&gt;
> 
> Anyway, thanks for the pointer. :-)
> http://forum.world.st/The-Trunk-ToolBuilder-Morphic-mt-178-mcz-td4909393.html
> 
> Best,
> Marcel
> 
> 
> 
> --
> View this message in context: http://forum.world.st/Merge-button-missing-in-MergeBrowser-tp4909328p4909394.html
> Sent from the Squeak - Dev mailing list archive at Nabble.com.
> 
> 
> 
>