This is a question to everyone reading this, when you play on MCC on 1.14 do you experience a text issue? Examples: When you type B it comes up with BG When you put Caps Lock on do you experience it taking you to the Disconnect/ResumeGame menu. Answer this poll so I can find out if this is just a PC problem or a 1.14 problem.
Hey! That sounds very weird, but there is a way that this can get more noticed! If you go to this webpage, you will have a much greater chance of it being seen by the owner and it getting fixed! Hope this helps, have a great day!
This isn't a bug which is related to MCCentral, so creating a bug report about this isn't a good idea. This sounds like you have some weird controls settings in your Minecraft client. You should check if your controls are fine in the settings. I also recommend that you don't use 1.14 when playing on MCCentral. The server runs on 1.8.9 and that's the version that you should be using. Playing on 1.14 can cause some issues due to the big differences between 1.8 and 1.14.
