I am currently mastering the best way to go around using external files for cascading selection, I still do not know the way out (i.e selecting the state, then LGA, then health facility from an external file).
However, I tried removing the drop-down for the health facilities which is the longest list for the drop-down, but the problem still persists.
I have fixed them and in the xlsform attached below. It should work smoothly (i.e. you should not be able to download them smoothly in your KoBoCollect android app from your KoBoToolbox server). But please note that i could also see a lot of choices (hundreds and thousands). Hence once again would recommend to use the select_one_from_file question type to solve this issue as outlined previously.
But as a try you could still use the following xlsform which you should now be able to get into your KoBoCollect android app.
OK so as a temporary solution maybe you could do the following:
Archive the existing survey project (the one that is not getting to your Collect android app).
Upload the xlsform that i shared with you (for this see my post above).
Deploy the same and then use it as your survey.
Note: The negative aspect of this approach is that you will later on need to merge your dataset manually once the survey is over. But the positive aspect is that your enumerators need not wait for the issue to be resolved.