Admittedly this is likely a bug occurring only for me. Under the "Shows" tab I am missing the posters for Marvel's Agent Carter and New Girl. Initially I thought it was a problem with Sonarr but I have recently moved to sickrage and the problem had persisted. Also if I select either show and go into the "Seasons" view the poster is displayed correctly there. Clearly NXB360 is obtaining the poster buy not displaying.
Can you confirm it's really a bug?
sickrage API seems OK

"If I click on tv-show in UPCOMING, the show page dont show the poster. But if I click on tv-show in SHOWS, the show page shows the poster"