Motilal Oswal Nasdaq 100 FoF - AMC returned SIP money

I had a Coin SIP in Motilal Oswal Nasdaq 100 FoF. This month, Zerodha placed order for it as usual, but few days later AMC refunded the whole money.

At the time, the “Buy More” option for the fund was also disabled in Coin.

I though the SEBI limit on international funds is imposed again (haven’t been up to speed with news these days) but now the “AMC SIP” option is enabled for this fund in Coin.

So, I’m not sure whats the deal here why the AMC refunded the SIP amount.

Are new SIPs allowed now?