Hello my friend.
After you open de assembler file you need to be sure that the complete assembler is activated.
How you do that? step in the top left Ab 00110.asm and click right, find the command activate and after activate all treat to make a mirror again.
If that no work you need to be sure that the file. part you want to mirror it´s located in a correct folder.
Please let me know if the problem was corrected.
I am aware of that, but the real problem is that it doesn't show me the tab with mirror properties. The tab you can chose if you want to mirror or rotate the part. i had not any problem with that until today.
Thank you very much !