Up until V8i I, it was possible to select the “Explode multi-lines” option in the pentabel settings. This ensured a correct conversion to PDF. In the Connect edition, this option is no longer available, which means that creating PDF files based on drawings with multi-lines no longer works correctly. Sometimes a multi-line is converted correctly, and sometimes it is not.

In the attached file, you can see the result of exporting to PDF using a pen table in connect edition. The color of the insulation in this section is sometimes displayed as a thin black line, sometimes as a thick black line, and sometimes remains in its original drawing color. The same applies to the line weights of the concrete structure, which are partly thin and partly thick.

Re-adding "explode multi-lines" can solve that.