I am not a physicist but according to Wikipedia and other sites, there might be a problem.
https://en.wikipedia.org/wiki/Electron_configurations_of_the_elements_(data_page)

'La -> 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 5d1 6s2' should equal 'La -> 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f0 5s2 5p6 5d1 6s2'

'Lr -> 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 7s2 7p1' should equal 'Lr -> 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d1 7s2'

'Th -> 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p6 6d2 7s2' should equal 'Th -> 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f0 6s2 6p6 6d2 7s2'

'Pd -> 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10' should equal 'Pd -> 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s0'

'Ac -> 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p6 6d1 7s2' should equal 'Ac -> 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f0 6s2 6p6 6d1 7s2'

goddamn chemistry :D

careful, there are exceptions to the rules. It's in the link too

(sry im new at this)
i used python 3.8
i see it in both sample and attempt tests
The issue perhaps is more clear in element Og:
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p6

Where are you seeing the wrong order (sample tests, attempt tests)? In which language?

i thought i did "This gives the following order for filling the orbitals:

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p, (8s, 5g, 6f, 7d, 8p, and 9s)"

3d after 4s and before 4p was my point in the first post - dont know if this issue persist elsewhere

No, read the link.

order is mistaken? :Br "1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p5....",
should be :Br "1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5...."

order isnt just ssss, pppp, dddd, ffff. Don't know if this issue is systematic. (i havent solved the coding problem, just made some print statements)

I guess I just should rewrite the description entirely... :s

edit: the most important part is actually in the wiki link: https://en.wikipedia.org/wiki/Electron_configuration

Confusing to me without advanced chemistry background...
Maybe because the image is missing? (see the issue I opened)

Depends on what you call an "exception". It actually perfectly follows the Klechkowski rules for feeling the different layers, so in that sense, it's not at all an exception. But for people without chemistry background, that might be another story (seeing 3d3 4s2)

The following image in the instructions cannot be loaded:
https://images.tutorvista.com/cms/images/156/order-of-electron-subshells.png

V is one of the python sample tests but should it be shown as an exception in the instructions?

Forgot about those... Fixed.

python: sample tests do not show the correct ordering in the string