I did a nucleic acid test in April, and now the health code is not displayed. What is the reason?

I did a nucleic acid test in April, and now the health code is not displayed. Is it caused by not opening the health correctly? The solution is:

1. First of all, you need to go to the Alipay homepage and select the health code.

2. Next, select a city, and then click View Now.

3. Jump to Hubei government service, and click Use immediately.

4. Unhide the detection results of 20 19-nCoV-RNA nucleic acid, and the health code can be displayed normally.