1- Ugene's qualifier "protein_len" (for CDS, gene or ORF) is including the stop codon, so it shows one amino acid longer proteins.

2- In annotations created with remote query (blast), the % identity is shown as 0% always (when placing the cursor over the annotation).

3- When exporting a sequence with annotations using the option complementary strand, puts the sequence in the proper (inverted) sense, but leaves the annotations in the original position.
PS: I'm trying to add screenshot, but is not easy...

Ugene v1.8, tested in Ubuntu 10.10 and Win XP