@odisej,
If you didn’t start the thread, and if you are not answering the original question, then “Yes”, you should start a new thread.
You should only add comments to a thread to answer it. If you’re asking a question, elaborating on a old problem that was resolved in a thread, or if you re-encounter the same issue, you still want to start a new thread.
If the old thread is related, then link it in your new thread.
This may seem extreme, but it keeps threads clean, short, and pertinent which helps everyone in the end.
I will be awaiting your new post. When you start it, please list the apps you mentioned and where you got them. i.e. Were they my apps on the app store or from some examples I wrote time time ago. This will help me when trying to help debug.