I've made more than my fair share of comments on the decline in build quality since collecting my then new Triton back early in 2017.
I believe it boils down to Hymer trying to move forwards for good reason but obviously missing the mark. Eriba in France were losing money, vans were assembled often with a lack of attention to detail and the technology was a bit behind the times.I'm also guessing they needed to raise production numbers but could not.
Production moved to Germany, design details changed, technology improved and vans seemed to be assembled better. The problem lies with the choice of materials not being up to standard and then things went wrong. So far I can understand all of this, but what then happened, or more to the point did not happen escapes me. Hymer did not address the issues. They continued to drag on and are only know it seems being addressed.
At the end of the day, or more accurately a couple of years ownership of these newer vans, owners have through there own efforts or via repeated dealer visits, the van as it should have been on first collection. A van that will last many years and bring much enjoyment, long after the wobbly white boxes of the same age have probably been recycled.

Colin