It sounds like the original part has a couple of pins bused (which will cause them to connect together internally). Yes, from the .fzp file of your part above (found by unzipping 7 Segment Display ELS-1806.fzpz above), pins 3 and 8 are bused together as the anodes:
You likely want to change the connectors above to connector1 and connector5 to match the
<connector name="common anode" type="male" id="connector1">
<connector name="common anode" type="male" id="connector5">
connector definitions further up the .fzp file. The bus connectors need to match the id field in the above. It is probably easiest to use a text editor to make the change, I know parts editor can set buses (they are called internal connections in PE), but I don’t know how you delete existing connections in Parts editor although there may be a way. If you use a text editor to make the change, you can then rezip the .fzp and the 4 svg file in to a .fzpz file and the part should work when the .fzpz is loaded.