standard shipping not tracking or showing sent

[walmu53]

Hello I am a new seller to ebay be selling for about a year.  Using ebay shipping and standard envelope with tracking and they arent showing sent or moving to destination

[jda08121]

USPS is having problems with the tracking on the new standard envelope process. 

[rebell45]

Yep, I had one that only showed the label purchase, then 20 days later, it showed up.  If the envelope is too stiff or has an irregular thickness, it won't go through their machines, hence, no scans.

[kds99]

The requirements are quite detailed and demanding as to how the label is applied to the envelope, etc., but once you get that figured out, it's very reliable, though feedback of the scans does lag.