Error while trying to move the image by double-clicking

Bug report

Summary

Error while trying to move the image by double-clicking

Configuration

I'm using:

Camera: Raspberry Pi camera v2

Motor controller: Arduino Nano

Steps to reproduce

after ofm upgrade (server 2.2.5). connect to web server or openflexure-connect-3.0.2 app (both client 2.1.3), then double-click to image

Relevant logs and/or screenshots

To access your microscope log, either:

• Run ofm log on your microscope, and copy/paste the output here

[2020-07-04 12:21:08,861] [DummyThread-15] [ERROR] post() missing 1 required positional argument: 'args' [2020-07-04 12:21:08,864] [DummyThread-15] [ERROR] Traceback (most recent call last): File "/var/openflexure/application/openflexure-microscope-server/.venv/lib/python3.7/site-packages/labthings/core/tasks/thread.py", line 104, in wrapped self._return_value = f(*args, **kwargs) File "/var/openflexure/application/openflexure-microscope-server/.venv/lib/python3.7/site-packages/flask/ctx.py", line 158, in wrapper return f(*args, **kwargs) TypeError: post() missing 1 required positional argument: 'args'

Additional details

hotkey moving is ok

/cc @jtc42