Default [Q] Wireless Charging Problem

Is anybody having problems with wireless charging? I bought a wireless charging receiver, and I give the different Qi chargers. Most of the time, I have to reboot the phone and/or unplug the charger in order to make it charge. I haven't been able to find a particular pattern to the behavior, but it seems to be the same with all three chargers. Sometimes, I lay it down and it works right away. It's a little frustrating. Does anyone have an idea what might be the problem? Thanks in advance.

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Has anybody noticed this? If you open the little USB cap and hold it really close to your ear, you can hear a tiny voice scream, "Unlock me!"