Biblatex 'minnames=1, maxcitenames=3' doesn't work in Overleaf (same surname/familyname problem)

Question

minnames=1 maxcitenames=3 doesn't work in Overleaf in the citations and short-form documentation (German: Kurzbeleg). What can I do?

In the following screenshot you can see, it works with one author, two authors and more then three authors. But with three authors it doesn't (here: 'Siddique, Mahmud et. al. 2017' - which should be 'Siddique et al. 2017'):

Here's my Code:

\documentclass{article}
\usepackage{hyperref}
\usepackage[T1]{fontenc}
\usepackage[ngerman]{babel}
\usepackage[backend=biber, style=ext-authoryear-icomp, hyperref=true, uniquename=false, maxcitenames=2, maxbibnames=3, minnames=1, introcite=plain, dashed=false,]{biblatex}
\addbibresource{bib/references.bib}
\DeclareNameAlias{sortname}{family-given}
\DeclareFieldFormat{bbx@introcite}{\mkbibbrackets{#1}}
\UndeclareInnerCiteDelims{bbx@introcite}
\renewcommand*{\introcitepunct}{\quad}
\begin{document}
Lorem \autocite{Siddique.2016} \autocite{Siddique.2017} \autocite{Muller.2018} \autocite{Stiewe.2015} \autocite{he2018thermoelectric} \autocite{He.2017}
\printbibliography[heading=bibintoc, title={Literaturverzeichnis}]
\end{document}

This are examples from my bib:

@article{Siddique.2016,
 author = {Siddique, Abu Raihan Mohammad and Rabari, Ronil and Mahmud, Shohel and {van Heyst}, Bill},
 year = {2016},
 title = {Thermal energy harvesting from the human body using flexible thermoelectric generator (FTEG) fabricated by a dispenser printing technique},
 pages = {1081--1091},
 volume = {115},
 issn = {03605442},
 journal = {Energy},
 doi = {10.1016/j.energy.2016.09.087}
}
@article{Siddique.2017,
 author = {Siddique, Abu Raihan Mohammad and Mahmud, Shohel and {van Heyst}, Bill},
 year = {2017},
 title = {A review of the state of the science on wearable thermoelectric power generators (TEGs) and their existing challenges},
 pages = {730--744},
 volume = {73},
 issn = {13640321},
 journal = {Renewable and Sustainable Energy Reviews},
 doi = {10.1016/j.rser.2017.01.177}
}
@misc{Stiewe.2015,
 author = {M{\"u}ller, Eckhard and Stiewe, Christian},
 year = {2015},
 title = {Anwendungspotential thermoelektrischer Generatoren in station{\"a}ren Systemen Chancen f{\"u}r NRW: Studie im Auftrag des Ministeriums f{\"u}r Innovation, Wissenschaft, Forschung des Landes Nordrhein-Westfalen},
 url = {https://elib.dlr.de/100251/},
 urldate = {2021-02-22},
 editor = {{Deutsches Zentrum für Luft- und Raumfahrt e.V.}},
 institution = {{Institute of Materials Research - Thermoelectric Materials and Systems}}
}
@article{Muller.2018,
 author = {M{\"u}ller, Eckhard and Stiewe, Christian and Ebling, Dirk},
 title = {Anwendungspotential thermoelektrischer Generatoren zur Abw{\"a}rmenutzung in station{\"a}ren Systemen},
 year = {2018},
 pages = {1--11},
 journal = {Gefahrstoffe-Reinhaltung der Luft}
}
@article{he2018thermoelectric,
  title={Thermoelectric properties of silicon and recycled silicon sawing waste},
  author={He, Ran and Heyn, Wieland and Thiel, Felix and P{\'e}rez, Nicol{\'a}s and Damm, Christine and Pohl, Darius and Rellinghaus, Bernd and Reimann, Christian and Beier, Maximilian and Friedrich, Jochen and others},
  journal={Journal of Materiomics},
  volume={5},
  number={1},
  pages={15--33},
  address={Peking},
  year={2018},
  publisher={Chinese Ceramic Society}
}
@article{He.2017,
 author = {He, Jian and Tritt, Terry M.},
 year = {2017},
 title = {Advances in thermoelectric materials research: Looking back and moving forward},
 pages = {1--9},
 volume = {357},
 number = {6358},
 journal = {Science},
 doi = {10.1126/science.aak9997}
}

Answer 1

I'll answer my own question with @moewe's hint. The problem seems to be, that several authors have the same family name. I found out uniquename=init helps, if there are two different authors with the same surname/familyname, but with another given name (It adds the initial of the given name to disambiguating authors). If there is twice the same author, but the references are from a different year uniquelist=minyear, labelyear=true solves the problem.

That would be my solution:

\documentclass{article}
\usepackage{hyperref}
\usepackage[T1]{fontenc}
\usepackage[ngerman]{babel}
\usepackage[backend=biber, style=ext-authoryear-icomp, hyperref=true, uniquename=init, maxcitenames=2, maxbibnames=3, minnames=1, introcite=plain, dashed=false, uniquelist=minyear, labelyear=true]{biblatex}
\addbibresource{bib/references.bib}
\DeclareNameAlias{sortname}{family-given}
\DeclareFieldFormat{bbx@introcite}{\mkbibbrackets{#1}}
\UndeclareInnerCiteDelims{bbx@introcite}
\renewcommand*{\introcitepunct}{\quad}
\begin{document}
Lorem \autocite{Siddique.2016} \autocite{Siddique.2017} \autocite{Muller.2018} \autocite{Stiewe.2015} \autocite{he2018thermoelectric} \autocite{He.2017}
\printbibliography[heading=bibintoc, title={Literaturverzeichnis}]
\end{document}