something is really wrong with my kmail/kontact

[ulge12 at gmx.net]

Am Freitag, 6. Juli 2018, 19:55:54 CEST schrieb Ianseeks:
> On Friday, 6 July 2018 04:14:51 BST E. Hakan Duran wrote:
> > Dear all,
> 
(...)
> > 1.The toolbar button to compose new email is not functional. Clicking that
> > button does not cause any response. 
Same here, but only sometimes. Today it began after switching from "contacts" 
back to "email".

If I create a new Mail via menubar instead of toolbar there is no problem...

Kubuntu 18.04 (fresh installation)
Kontact 5.7.3.
KDE Frameworks 5.44.0

Uli