testcafe works properly for individual test but all tests

Question

I'm new in testcafe. Here is the issue I confronted recently. Please shine some light:

Say I got four testcafe tests, say A, B, C and D

1. It works smoothly if I run them one by one, testcafe chrome A.js, testcafe chrome B.js and so on

2. Now I grab all my tests in a folder named tests then run it by using: testcafe chrome

After step2, only the first three tests work as desired(all pass), test D will always failed for suspending in the loading page, then Selector cannot locate the right button:

loading page -- undesired

Here is the desired page which will showup in previous three tests:

desired page

Can someone shining light on this issue?

Answer 1

Just a follow-up, we have fixed the issue described in this thread:  

Clear out the localStorage after testing