update..
I have the issue partially solved, in the two tablets only.
But, to answer Remy's question. I don't have the latest version because I had never used them in mobile devices.. only in Windows. And I never had any issues. They just worked.
In Android mobile devices is where and when I just found out they don't work. Well, at least not for Android 10 on my smartphone. So, I wouldn't know if they are outdated and/or need to be upgraded.
But, as it turns out, for the Android 4.4.2 and 4.4.4 on my two tablets, I did not have the Internet turned on, for those two devices. You see, in order to save battery life, I had turned off the auto-internet feature of those devices, and when I started using them in this project and with the Indy tidhttp component for the first, that is when I discovered all this trouble.
However, the app no longer gives me any trouble for android 4.4.2 and 4.4.4 on the tablets.., it is working fine.
I just need to get it working on the smartphone.