Rendering problems with vector-graphics

Hey,

i have a strange problem with Adobe Reader (X,XI,DC) for PC.

I have a PDF file (8MB) with vectorgraphics in it.

When i open the file, it is just a blank page. But when i open preferences (ctrl+k) and change the DPI setting from "use system setting" to "userdefined" and then from default 110 dpi to 111, then the picture becomes visible.

BUT: when i close Adobe Reader and open the same file again, it's invisible again.

Now i can change the dpi setting from 111 to 110 and it's visible again... until i close the reader.

When it's visible, and i change the dpi setting a 2nd time (when the picture is already visible) it becomes invisible again and whatever i change then, it will stay invisible, just until i restart the reader and change the dpi setting again by 1.

Now, the funny thing is, on very mobile Reader-App (WinPhone, Android oder iOS) everything is fine, the picture will show up.

I've testet it on Win7 with reader x, xi and dc, on Win10 with reader x and built in pdf-reader in edge-browser.

Any idea, why adobe reader acts like that? Is there any setting i need to do? Hope somebody can help.