Apex trading with Tradovate

Guys,

I am currently working on a 25K account with Apex. I am up 274USD after three days. First day was a winning day, second a losing day and third a winning. I have not violated the max drawdraw amount.

I trade the dow on micro contract and today,
my fourth day, I can´t place any trades or orders. I trade two micro contracts
per trade. My orders/trades are being rejected for some reason. Wrote to Tradovate support and got an AI answer that they have increased margin for during news. I don´t see any specific news today, so I understand why can place trades.

Have any of you experienced similar situations or know what is happening?