There's something about my demo accounts (it seems my brokers are using it)

I use up to 5 different demo accounts, with 3 different brokers and different amounts for different strategies. But I have noticed for a longtime that whenever I switch accounts and then return to the previous one I was using, my opened positions are different in terms of amount (the amounts are usually huge) but the same position size, hence my P/L that’s running will be very huge. After some seconds it returns to my normal account details.
Everytime I laugh over it, these guys are using me to trade for them but am just a newbie. Until recently I requested for a new demo account, and switched to an old account to open a possible profitable position and come back to continue my strategy testing with the new account and BOOM I saw 6 figures in a position I had opened earlier lol. But the capital of the account isn’t up to 6 figures, I raise my face to look at the running P/L it’s reflecting same.
Please I think I don’t I need to mention the broker cus I don’t think it is a serious issue, but am considering to open a live account with them. Please forum members, anyone with such experience? If yes, is it normal? If I open a live account with them, won’t same happen ?
Thanks.

I have never personally had that experience but it would definitely make me think twice about opening a real account with them.

Even if it’s just a “glitch” in their system, do you want to risk your real money and be subject to that “glitch”?