Hello,

Thank you for your patience and detailed instructions.

Regarding your inquiries:

Theme and Customizations: The live website currently runs on an older version of the theme because updating resulted in conflicts with my CSS customizations, particularly affecting the sticky menu. However, I have installed the latest version of the theme locally to address these customization conflicts. It’s important to note that the filter issue persists even in the latest version, indicating that it is not related to the theme version. This discovery allows us to focus on the problem without concerning the theme update.
Permissions and Documentation: Please feel free to disable third-party plugins and switch to the parent theme as needed for a thorough investigation. I only ask that you document the changes made during this process. This documentation is crucial for me in case I need to revert any changes for troubleshooting. I trust that your adjustments will not negatively impact the site’s functionality or appearance.
Further Actions:
Video Example: I will provide a video example showcasing the inability to select multiple filter options as soon as possible.
Permissions for Testing: You have my permission to disable the plugins and child theme necessary for testing the “Clear filter” functionality properly.
I appreciate your help in resolving these issues and look forward to your updates.

Kind Regards