Let's run some steps to isolate why the date format shows differently on the same ledger.
You may be experiencing some data issues. To isolate the root cause, let's access QuickBooks Online (QBO) using a private window. This mode doesn't use the existing cache data and helps us confirm browser-related issues. You can use these keyboard shortcuts to open one:
Google Chrome: Ctrl + Shift + N
Microsoft Edge & Mozilla Firefox: Ctrl + Shift + P