Hi @UğurBaranSarıbaş
Thanks for the additional information, that makes sense.
Just to double-check, is your URL using quotation marks, as shown above? If I publish your sample XLSForm and then open it in the web app using the following URL (i.e. without quotes) the choice list in the repeat works as expected:
https://survey123.arcgis.com/share/39dd7973364041c6a3954024616e91c6?field:form=1
However, if I add quotes (i.e. form="1") it does not, which is expected as the quotes won't work in a URL.
Please let me know if that might solve the issue.
Best, Jim