[Resolved] [Support request] Problem with loading new translations (Polish) after editing .

Hi,
I am having an issue with loading new translations in the Simple Membership Plugin after editing the .po and .mo files. I translated the plugin to Polish, but after uploading the translation files, the plugin still displays the old translations.

Steps I have taken:

1. I edited the .po file using Poedit and generated the .mo file. The translation to Polish is 100% complete.
2. I placed both files in the following plugin and language locations:
/wp-content/languages/plugins/simple-membership-plugin-pl_PL.po
/wp-content/languages/plugins/simple-membership-plugin-pl_PL.mo
/wp-content/plugins/simple-membership/languages/simple-membership-pl_PL.mo
/wp-content/plugins/simple-membership/languages/simple-membership-pl_PL.po
3. I cleared the cache using WP Rocket.
4. The new translations are still not showing.

5. What’s even more strange, approximately 20 minutes after midnight overnight, the files:
/wp-content/languages/plugins/simple-membership-plugin-pl_PL.po
/wp-content/languages/plugins/simple-membership-plugin-pl_PL.mo
are overwritten by the plugin’s original files.

What should I do to ensure the translations I created work?

I am using WordPress version 6.6.2 with the Astra theme and Simple Membership Plugin version 4.5.4.

Thank you in advance for any suggestions and help!
Best regards,
Sebastian