Apart from that, we might be facing an interaction issue with a third-party functionality, in this case:
- Deactivate all the plugins that are not related to Toolset
- Switch for a moment to a WordPress default theme like Twenty Twenty-one
- If the issue is gone, activate one by one to see with which one there is an interaction issue
Another valid test would be to check it in a different server (localhost, for instance).
Could you please tell me the results of this investigation? Thank you.