The bubbling (hydrogen being liberated by the anodizing process) should not stop or even slow down at any point in the anodizing process, LCD or otherwise. Hydrogen liberation starts within a few minutes of applying power and it should bubble at a fairly uniform rate for the entire time the work is under power. If it does not you have a serious electrical problem. Seeing no change in voltage or current also indicates an electrical problem.
First; inadequate electrical connections to the work is the most common problem beginners encounter. Almost everyone gets this wrong at first.
Next is using the crude and nearly useless ammeter on a battery charger (if that's what you are using) to measure low currents (like 1 amp). At low current, a battery charger ammeter is commonly 50% off.
Third is not enough voltage available from the power supply, if you're using a battery charger, the 6V setting will cause this.
If you require any more information you will have to get more specific about your setup.
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