Csh doesn't source init files completely

I have a strange problem with (t)csh since the latest opensuse/tumbleweed upgrade. csh and tcsh don't source the init files completely. They seem to terminate after sourcing the first nested file.
They process the code in /etc/csh.cshrc until they find a command like source /etc/profile.d/bindkey.tcsh . Then they process this file (which is expected) but after that processing stops, i.e. the rest of /etc/csh.cshrc is not executed. Any idea what goes wrong? tcsh version is 6.21.00.

For debugging it, run

tcsh -X

What happens if you temporarily rename the suspicious file?

mv /etc/profile.d/bindkey.tcsh /etc/profile.d/bindkey.tcsh.disabled

Thanks for your answer. tcsh -X shows exactly the commands until the end of the bindkey.tcsh. Anyway, I think it's not a peculiarity of these files. I tested with two toy files

# file1
echo "entering file 1"
source file2
echo "leaving file 1"
# file2
echo "entering file 2"
set x=1

echo "leaving file 2"

And this is what happens:

heiko>source file1 
entering file 1
entering file 2
leaving file 2
heiko>

That looks like a severe bug in tcsh.
Downgrade It!
(I wonder why they still do changes to that dead horse.)