Yes, from the Jain point of view it can still create a problem, though the degree of karmic bondage depends on intention, carelessness, and harm caused.

In Jain ethics, false speech (asatya) is a cause of pāpa karma. If a person speaks something untrue confidently, even without knowing it is false, there is still delusion and carelessness involved. However, it is generally considered less severe than knowingly lying, because the intention to deceive is not there.

A Jain understanding would be:

• Knowingly false speech: more serious bondage.
• Careless spreading of false information: still harmful, because it can mislead others.
• Speaking only after proper verification: is the safer and more dharmic path.

So, even if there was no possibility of knowing at that moment, once falsehood is spread, it can still become a cause of karma and harm. In Jain conduct, one should be very careful with speech, especially before stating something as certain truth.

In short: yes, it can create a problem, though the blame is lighter if there was no intention to deceive.