Peeling interior jointing tape

The interior ceiling jointing tape keeps peeling off. I hve tried replacing it with tape supplied by auto sleeper but that also peels off. The same is happening in the bathroom above the window on wall and ceiling. Can anyone suggest a way of remedying this or suggest an alternative. I have seen other modern motorhomes with joint covers that look like they may be made of UPVC or other solid material.

Very recent thread.....

https://www.autosleeper-ownersforum.com/t32580-nuevo-internal-wall-covering-joints#277003

That seems to be a backward step IMO re jointing tape on your 2018 Broadway compared to our 2013 model which has the 15mm white PVC cover strips on the ceiling. As Paulmold states 'very recent thread' see Chrisjohn's photos which detail the PVC strip. Regards.