Can not confirm the issue with last GIT version. What is your config abiut urlManager ?

Maybe its' get ?

I only can confirm issue for loader.gif only :)

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=19836

Dev note:
MSSQL does not properly identify a field name starting with numbers and
Cgridview does not seem to properly quote the fieldname for the query.

Probably an error in Yii CBCriteria - field names in criterias should always be quoted.

@c_schmitz : ytou're right : compare don't quote : https://github.com/LimeSurvey/LimeSurvey/blob/master/application/helpers/common_helper.php#L5650

PS : bad SQL => 404 error ???????

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=19839

I cannot see any other errors. So lets first fix what's obvious.
It is IIS so it is somewhat unpredictable. :p A 404 instead of some other error would perfectly fit that.

thiagosmartins, please apply the fix (just replace the file with the one from the second patch) and let us know if the issue is gone.

Its why i think og get in url and not path :)

I don't know if this is related to this issue, but maybe it is. I was about to open a new case but maybe it is related to this one.

In the same survey, more then 400 responses, when I try to "Export to Application" and select Microsoft Excel, I get a huge PHP Warning. See attached PDF file. Sorry if this is not related to this case, I have very basic dev and DB skills. If needed I can open a new case for this one.

Sorry guys, still not working after changing SurveyDynamic.php. Same 404 error and same log using Chrome Dev Tools (error below). I have tried both, the first e last fix.

#breadcrumb-container
https://ADDRESS/tmp/assets/b198ed5/img/loader.gif [^] Failed to load resource: the server responded with a status of 404 (Not Found)
https://ADDRESS/index.php?SurveyDynamic%5Bid%5D=&S [^]…Fsurveyid%2F883598&YII_CSRF_TOKEN=190f3c06a29d87e61eebc466165222d180d7ca3b Failed to load resource: the server responded with a status of 404 (Not Found)
https://ADDRESS/index.php?SurveyDynamic%5Bid%5D=&S [^]…Fsurveyid%2F883598&YII_CSRF_TOKEN=190f3c06a29d87e61eebc466165222d180d7ca3b Failed to load resource: the server responded with a status of 404 (Not Found)
https://ADDRESS/index.php?SurveyDynamic%5Bid%5D=&S [^]…Fsurveyid%2F883598&YII_CSRF_TOKEN=190f3c06a29d87e61eebc466165222d180d7ca3b Failed to load resource: the server responded with a status of 404 (Not Found)

I set up the IIS with SQL Server and could not reproduce.
Probably it is a server conifguration issue.
Anyway, there have been numerous changes along with mine so a full update might be necessary.

Version 2.50 Build 160731 released