[Resolved] PDF invoice needs to reload to be in the right language

Hi,

Thank you for contacting the support.

First of all I'll advise to fix the followings:

IMPORTANT: Take full backup of your website and database beforehand. It is highly advised to try the following on a staging/dev site first, so your live website isn't compromised.

1) Update PHP version to at-least 7.4 which is recommended by WordPress itself (https://wordpress.org/about/requirements/).

2) Fix “WP Memory Limit” to at least 128MB while 256MB is recommended. See https://wpml.org/home/minimum-requirements/ for detailed information. You can set this in your wp-config.php file by adding following code:

define( 'WP_MEMORY_LIMIT', '128M' );
define( 'WP_MAX_MEMORY_LIMIT', '256M' );

Remember to add these lines before the line where it says:
/* That's all, stop editing! Happy publishing. */

Once these are fixed, clear all caches and retry. I hope this should resolve the problem.

3) However, if problem isn't fixed, I'll need some more information like what "reload" actually means? I mean do you reload the PDF file (i.e. closing/reopening) or generate the invoice again?

Further, I checked in our plugins compatibility list (https://wpml.org/plugin/?wpv_view_count=120064&wpv-plugin-functionality=0&wpv_post_search=PDF+Invoices+%26+Packing+Slips+for+WooCommerce&wpv-wpcf-recommendation-flag=&wpv_filter_submit=Search) and found 2 plugins. One isn't compatible while other is. But I am not sure which one is exactly you are using. Please have a look and let me know.

Regards.

Thank you for the details. You'll have to follow the link to this thread and can reply from here. Emails are not caught up.

May I ask for admin access to your website to check the issue in detail? You can create a separate admin user for this purpose, which can be deleted afterwards.

Also provide detailed steps to reproduce the issue and links to pages in admin and on frontend.

Remember to take full backup of your website and database before proceeding. However, a staging/test site is highly recommended, because I may need to try some changes/fixes on the site (including plugins & themes deactivation), which may cause conflicts with the live site otherwise.

Please confirm it in your next reply or let me know if you do not agree with the mentioned.

I've set your next reply as private to share this information safely.

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See https://wpml.org/purchase/support-policy/privacy-and-security-when-providing-debug-information-for-support/ for details on privacy and security.

Thank you for your patience and cooperation.

I checked in your staging site following the same steps you showed in your screen recording (earlier). But I can't reproduce the issue.

I've recorded my activity, please download from hidden link

As you can see that PDF Invoice was generated in the same language as admin's (set in user's profile). I couldn't find mix of languages on the PDF.

I however, had cleared WP Rocket cache beforehand. You can also try that. But the difference I see is perhaps the browser. You are using Safari while I tried in Chrome's Incognito mode.

So I'll recommend checking in other browsers and also in incognito modes. Because this looks like browser's caching (i.e. local session is cached). You can also set your browser to disable caching.

Thank you for the updates.

You are right, I didn't notice that I have to actually put my cursor in the address bar and hit enter. This is strange. But I've noted the reason.

The "lang" parameter isn't being preserved, although you've set it in WPML -> Languages. While, the same invoice can be seen "almost" correctly with the 2 buttons above this "PDF Invoice" button, which are for both languages separately. However, they still somehow/sometimes need a push (cursor in address bar and enter).

But once the lang param is available and if you've hit it (once), it stays fine.

To further investigate the issue, I updated the WordPress, deactivated several plugins, including WPML, so I could update WPML', but looks like due to some sitekey issue I can't upload.

So I deleted WPML and String Translation but when trying to upload I am running into "Something went wrong" and sometimes it says "The link you followed has expired." or "413 Request Entity Too Large".

Can you please provide me FTP access to this staging site? So I can manually remove and update the plugins. And then continue with further testing.

I've set your next reply as private again.

Thank you for your patience and cooperation. I was able to reproduce the issue in the sandbox site (hidden link) and 've escalated the issue to our 2nd tier team for investigation.

I'll update you as soon as I hear back.

Thank you for your patience and cooperation.

Team suggests to use the "Professional" version of the plugin. Because as per our WPML compatible plugins list, the current plugin isn't recommended (https://wpml.org/plugin/?wpv_view_count=120064&wpv-plugin-functionality=0&wpv_post_search=PDF+Invoices+%26+Packing+Slips+for+WooCommerce&wpv-wpcf-recommendation-flag=&wpv_filter_submit=Search).

You can find that on plugin dev's site at hidden link.

Please try this and let me know.

Thank you for trying that.

I am checking in your staging but can't see it installed, perhaps you tried on the live site? Can you please copy that plugin to the staging or to this sandbox hidden link.

Since this plugin is compatible, I can then test and update my team and they can look into it.