TomBenj wrote: Actually, I was wrong on the PHP version, it's 7.4,

Looks like you use cPanel with your hosting. You should be able to change your PHP version as well, right?
I recommend to change to PHP 7.3 for a while.

If you still cannot reproduce the issue on your own (since you don't own a iOS/MacOS device with safari), the error reporting is from your survey visitors. Are they all from different areas? Or is it a survey with a certain group of visitors (e.g. one company)? Since we don't know which Safariversion was used, it might be a certain safari issue which is matched by a LimeSurvey bug.


The error message "Please use the LimeSurvey navigation buttons or index. It appears you attempted to use the browser back button to re-submit a page" can be triggered by many different things. That error message is an evergreen. If the issue is always at the same page, it can be an content issue of the page. You should copy the survey and reduce the survey to just the problematic question and check again.


I recommend to switch to LS3 (even though you got these reports there as well) and to PHP 7.3. If you still got these reports, you might ask the reporter about the exact version/device.

TomBenj wrote: Can you recommend anyone who might be able to help?

For inforamation : i already manage some server, for LimeSurvey and not.

But your issue is too complex … i don't own all iOS version for example …

But starting by goes to 3.22 is the way to do …

But starting by goes to 3.22 is the way to do …

I also agree with Jelo and Denis on downgrading to 3.22 (not necessarily because of this issue, but because of many others that might appear).

Problem there: You can't easily downgrade your installation and you also can't import LSS files into LS 3.x that were created in LS 4.x.

Interesting suggestion the downgrading. I had upgraded to 4.x because the issue was present in 3.22.11.

Unfortunately LS 4.x is not ready for production in my opinion (and most regular posters of the forum like Tpartner, Denis, Joffm, Jelo, etc will most likely agree).

That is why we said: It will probably not solve your problem, but it will protect you from other problems.

holch wrote: Unfortunately LS 4.x is not ready for production in my opinion (and most regular posters of the forum like Tpartner, Denis, Joffm, Jelo, etc will most likely agree)..

I confirm.

Quickly :
- if 3.X have an issue => 4.X have it too
- If 4.X have an issue => 3.X can have it, but only for some specific issue (like your's)

Sorry, that level of unreliability, coupled with lack of response from the Bug Tracker, just isn't good enough for us. We're switching to SurveyMonkey.

Or you could have just gone to LS 3.x LTS without a problem.

Currently for LS 4.x there is a long list of bugs that needs to be resolved, so I am not surprised that your problem has been resolved yet. Which is why we here in the forum recommend to go with LS 3.x LTS, which runs pretty stable.

I currently see no good reason to insist using LS 4.x.

But anyway, your decision has been made anyway. So no problem, I guess.

holch wrote: Or you could have just gone to LS 3.x LTS without a problem.

The user got the impression that LS3 is buggy as well.
bugs.limesurvey.org/view.php?id=16121
The question is if that is selfhosting issue or not.

The amount of work to track the issues with impact to run survey in a production ready environment is quite high.

The user got the impression that LS3 is buggy as well.

Well, I guess yes, there are some bugs in LS3 as well. Just like in most software that I know. But of course, everyone needs to decide for themselves what works for them and what doesn't. I can surely understand that the current issues in LS4 don't leave a good impression. Just what I am preaching since LS4 has been released as "stable".

LS3 I think works pretty good though.

I first had the issue on 3.X, so that is not encouraging. I didn't want to drop LimeSurvey but have spent way too much time trying to get this problem resolved. I have an IT background and would have gladly worked to resolve this issue, but I needed help. We have a campaign under way with another two following shortly, and we simply can't afford to delay any longer.

TomBenj wrote: We have a campaign under way with another two following shortly, and we simply can't afford to delay any longer.

Since SurveyMonkey offer no selfhosting, the LimeSurvey hosting by LimeSurvey.org would be the way to compare LimeSurvey again. Your bugreport with LS3 couldn't reproduced by the LimeSurvey team. There are others with your reported issue. The additional layer of hosting environment with selfhosting is not easy to debug. Even without this issue LimeSurvey will always show more issues than SurveyMonkey. The development model and the rollout of features is quite different.