From what I recall , these issues were solved with patches pfSense package ages ago :
4dcf0368-291d-486f-9000-c36f26764e2e-image.png
The bad news : you have to dig them up, here, in this forum or redmine.
The good news : 2.7.0 - coming out soon - will take care of things.
I was using 2.6.0 quiet long time, and issues (important to me) were solved after some forum interaction.