Updating user variables cause crash

[kishaver]

Dear everyone,

today I noticed, that if I want to update a user variable from a python event, domoticz crashes and I need to restart it.
The update is through the json call. If I do it from my browser it runs okay, but in the script it causes domoticz to crash.
Is there any way to workaround this problem? I mean can I change a user variable without the json call?
I was working with the latest stable version, but I thought that it was a problem, or in the newest beta it was patched. So I reinstalled domoticz, but the problem is still there.

Thank you all!

-kishaver