Code doesn't fold in Spyder 4.1.5

Problem Description

Code folding doesn’t work at all in my Spyder 4.1.5. I know there have been these issues in the prev versions of Spyder but to me it happens with the latest version.

I assume this might have something to do with the fact that I use working PC, where some Spyder elements might not be available: On my personal PC code folding works fine. I’d still expect code folding should work on my working PC as well.

What steps reproduce the problem?

What is the expected output? What do you see instead?

The code should fold.

Paste Traceback/Error Below (if applicable)

QProcess: Destroyed while process ("C:\\Users\\KolmanM\\AppData\\Local\\Continuum\\anaconda3\\python.exe") is still running.
QTextCursor::setPosition: Position '-1' out of range
QTextCursor::setPosition: Position '-1' out of range
QTextCursor::setPosition: Position '-1' out of range
QTextCursor::setPosition: Position '-1' out of range

Versions

• Spyder version: 4.1.5
• Python version: 3.7.8
• Qt version: 5.9.7
• PyQt version: 5.9.2
• Operating System name/version: Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0           :  1.4.0 (OK)
chardet >=2.0.0                :  3.0.4 (OK)
cloudpickle >=0.5.0            :  1.6.0 (OK)
diff_match_patch >=20181111    :  20200713 (OK)
intervaltree                   :  None (OK)
IPython >=4.0                  :  7.18.1 (OK)
jedi =0.17.1                   :  0.17.1 (OK)
nbconvert >=4.0                :  None (OK)
numpydoc >=0.6.0               :  1.1.0 (OK)
paramiko >=2.4.0               :  2.7.2 (OK)
parso =0.7.0                   :  0.7.0 (OK)
pexpect >=4.4.0                :  4.8.0 (OK)
pickleshare >=0.4              :  0.7.5 (OK)
psutil >=5.3                   :  5.7.2 (OK)
pygments >=2.0                 :  2.6.1 (OK)
pylint >=1.0                   :  2.6.0 (OK)
pyls >=0.34.0;<1.0.0           :  None (OK)
qdarkstyle >=2.8               :  2.8.1 (OK)
qtawesome >=0.5.7              :  0.7.2 (OK)
qtconsole >=4.6.0              :  4.7.7 (OK)
qtpy >=1.5.0                   :  1.9.0 (OK)
rtree >=0.8.3                  :  0.9.4 (OK)
sphinx >=0.6.6                 :  3.2.1 (OK)
spyder_kernels >=1.9.4;<1.10.0 :  1.9.4 (OK)
watchdog                       :  None (OK)
zmq >=17                       :  19.0.2 (OK)

# Optional:
cython >=0.21                  :  0.29.21 (OK)
matplotlib >=2.0.0             :  3.3.1 (OK)
numpy >=1.7                    :  1.18.5 (OK)
pandas >=0.13.1                :  1.1.1 (OK)
scipy >=0.17.0                 :  1.5.2 (OK)
sympy >=0.7.3                  :  1.6.2 (OK)

[marekkolman]

Thank you. I had the package installed, so I removed and installed again. After I reinstalled that package, I could see that package in Spyder dependencies but it still didn’t work. What I did afterwards is that I enabled this: Not sure exactly what it does but now all runs fine. It might have something to do with the working PC config (ports blocked or so).

[RSKothari]

Since I didn’t want to re-open a previous issue, I’m facing similar issue here.