I had a bin crew put some Westeel 8 ring, 19ft bins on hoppers in summer of 2020. First season of fills and empty’s went fine. They seemed fine when I filled them again this fall. I just emptied 3 of them last week and one made a sh!tload of noise, sounded like bolts were shearing off, and lots of creaking going on! Was kind of worrisome being around it!! Then I noticed sheets on the bin were almost inline with each other on bottom half of the bin. Bin guy come out today and said, they shouldn’t be like that, but it should be fine. He said the sounds were probably caused because the lid wasn’t opened, too airtight??? Looking in inspection hole, I could see maybe 1 bolt hole of daylight, while on the other 2 empty ones were definitely less airtight since I could see more daylight showing! Has anyone else had something like this happen? Do these look safe to any of you? 2 of the photos show the sheets being 1 bolt away from being inline and other photo shows what I think they should be like. I’m not a bin builder so I never even noticed until I heard it making noises! Advice would be appreciated..thanks!