Fanny Roos, who broke the Swedish record when she won European Championship silver at the European Championships in March at 19.29, did not have a good day in Gateshead.
She stayed at 18.33 in her outdoor premiere and finished only fifth.
Thobias Montler also accounted for a rather pale effort when he jumped 7.85 in the long jump.
It was not enough to be among the three who got the chance to make six jumps, according to the new rules.
He finished fifth.
Armand Duplantis has started the pole vault competition and later Kalle Berglund will run 1500m and Kim Amb will throw javelin in Gateshead tonight.