Schema Browser - Viewing Synonyms- Get Out of Memory Error

Toad for Oracle Xper 64 bit, - (everything works fine) But When attempting to navigate to the “Synonyms” in schema browser (I use tree view), Toad hangs up and does not display anything within the synonym box and we receive “Error: out of memory” error.
Has anyone experienced this and have a resolution? Thanks!

This bug was first reported back in February, and I ran into it too. It is Issue ID TOR-5958, and it is fixed in 16.0 which has just been released.