In case your check came about in a Public Well being England lab or NHS hospital, or as a part of nationwide surveillance testing performed by the Workplace for Nationwide Statistics, check outcomes can't at present be linked with the app whether or not they're optimistic or destructive.
Regarding other app features, Mr Hancock said more than 1.5 million venue check-ins were recorded on Saturday.
While anyone in England and Wales can download the app, the problem existed only in England.
"The launch of the NHS COVID-19 app is an important part of Wales' coronavirus response, supporting the NHS Wales Test, Trace, Protect programme", Wales' Health Minister Vaughan Gething said.
Users were unable to record a positive test result, if they had booked a test elsewhere and not via the app.
If your test took place in a Public Health England lab or NHS hospital, or as part of national surveillance testing conducted by the Office for National Statistics, test results can not now be linked with the app whether they're positive or negative.
The Department for Health did not give an immediate response but its website said it was working to rectify this issue as soon as possible.
Not exclusively that, the BBC's Zoe Kleinman reports that customers are additionally unable to enter destructive check outcomes in the event that they booked their check outdoors of the app.
The ability to log a negative result is being looked into, she added, after user feedback suggested people wanted the ability to do so.
When the issue emerged, the Welsh Government tweeted to confirm that while the app is used across both countries, there was no problem in Wales.
"Everyone who receives a positive test result can log their result on the app", a health ministry spokesman said.
"Here you'll get a code in your test result notifications to enter into the app, whether your result is positive or negative".
More than 10 million people have downloaded the NHS Covid-19 app since it launched on Thursday, the Health Secretary has said.
The glaring oversight means that those who test negative at an NHS facility will be unable to inform the app that they don't have the virus, and as a result, even healthy people will be ordered to self-quarantine.
The latest Government data shows 61,481 test results - either positive or negative - were reported on Friday from tests carried out in PHE labs and NHS hospitals.
Tests booked via the app will have the results automatically shared with it, it said.
Meanwhile the ONS infection survey showed that in the latest six-week period there were a total of 282 positive tests, in 226 people from 188 households.