Fingrid published two messages that sound like countermeasures to deal with the fallout: https://umm.nordpoolgroup.com/#/messages?publicationDate=all...

> Fingrid has closed intraday trade in directions FI>SE1 and FI>SE3 to ensure system security and balancing capacities concerning the non-matching situation in the Finland bidding zone after Day-ahead trades. Update: Intraday trade in direction FI>EE closed

> Fingrid is prepared to initiate Intraday purchases, if necessary, to ensure system security and balancing capacities concerning the non-matching situation in the Finland bidding zone after Day-ahead trades.