qt-Dragon HD Qtvcp error

Hello,
I updated linuxcnc to version: 2.9.0-pre0-7921-gfdda9b21a
Now my qtDragonHD configuration does not load anymore, even if I try the sim version of QtDragon_hd it gets a Qtcvp error, the only version of qtDragon that works are the non hd sim versions.
Below is the QTvcp error message, what can be the cause of this error message?

Traceback (most recent call last):
  File "/usr/bin/qtvcp", line 511, in <module>
    APP = QTVCP()
  File "/usr/bin/qtvcp", line 277, in __init__
    window.load_extension(opts.usermod)
  File "/usr/lib/python3/dist-packages/qtvcp/qt_makegui.py", line 265, in load_extension
    methods, self[obj].handler_module, self[obj].handler_instance = self._load_handlers([handlerpath], self.halcomp, self[obj])
  File "/usr/lib/python3/dist-packages/qtvcp/qt_makegui.py", line 293, in _load_handlers
    mod = __import__(basename)
  File "/usr/share/qtvcp/screens/qtdragon_hd/qtdragon_hd_handler.py", line 18, in <module>
    from math import dist, ceil
ImportError: cannot import name 'dist' from 'math' (unknown location)


 

It cant find a math library.
run this in a terminal:
sudo apt install python3-distutils

I tried it but python3-distutils is already installed.

Can you tell us about your linux system?
Can you yell us the python version number?

Hello sorry for the late reply, My linux system details are,
Debian 10
Kernel : Linux cnc-plasma 5.10.0-0.deb10.17-rt-amd64
Linuxcnc Version : 2.9.0-pre0-7939-g600ba1a08
Python 2 : Python 2.7.16 (default, Oct 10 2019, 22:02:15)
Python 3 : Python 3.7.3 (default, Jan 22 2021, 20:04:44)
python3-distutils version (3.7.3-1)

I missed out a part of the error message on my first post,
I don't understand why it asks me to install python3-distutils even though it is installed, is it a missing dependency?

Traceback (most recent call last):
File "/usr/share/qtvcp/screens/qtdragon_hd/qtdragon_hd_handler.py", line 19, in <module>
from math import dist, ceil
ImportError: cannot import name 'dist' from 'math' (unknown location)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/bin/qtvcp", line 511, in <module>
APP = QTVCP()
File "/usr/bin/qtvcp", line 277, in __init__
window.load_extension(opts.usermod)
File "/usr/lib/python3/dist-packages/qtvcp/qt_makegui.py", line 265, in load_extension
methods, self[obj].handler_module, self[obj].handler_instance = self._load_handlers([handlerpath], self.halcomp, self[obj])
File "/usr/lib/python3/dist-packages/qtvcp/qt_makegui.py", line 293, in _load_handlers
mod = __import__(basename)
File "/usr/share/qtvcp/screens/qtdragon_hd/qtdragon_hd_handler.py", line 21, in <module>
LOG.error('Is python distutils installed? (sudo apt install python3-distutils')
NameError: name 'LOG' is not defined

can you open a terminal type:
python3

then:
from math import dist, ceil

and see if you get an error.