Blender uv overlapping

Hello friends I have a problem about uv overlapping.I modeled simple cola can and unwrapped in blender.I am using UvPackmaster 2 addon and according to addon there is no overlapping in my uv.I imported my can as a fbx. to unity and I made object to static.Unity said that “your model uv is overlapping” I clicked “generate lightmap uv” button from model and I increased margin value but nothing happened.I made litte search on net and I found increasing light map scale from inpector of object.I increased lightmap scale until 50.It solved uv overlapping problem when lightmap scale is equal to 50 but this was not optimized.I tried nearly every un wrapiing in blender smart uv, lightmap uv, cube uv etc… but unfortunately none of them worked.I am using unity 2019.2.6f1 hdrp project.How can I solve this overlapping problem.Here is picture of my object and uv map.Thanks.



https://www.evernote.com/l/AZ0Oa9Max6xJC6OtwwK0lsEHc5AHah3pijY/ //Fbx file of my model

Imgur
Imgur
Imgur

On the second screenshot, the right side of the UV island goes beyond the border. Could be just framing though