Volume directories disappear after a few minutes

I am on Mac Book pro mid 2015, Sierra 10.12.3. Using
17.03.0-ce-mac2 (15654)
Channel: stable; 1d7d97bbbd

I find that after about 10-20 minutes after running docker compose up, A particular host mounted volume directory disappears. This directory is 5.3GB big.
It is mounted in 2 locations in 1 container and 2 locations in 2 other containers respectively. Is the size of the directory an issue that would cause this. I’ve been seeing this issue happen more frequently in the past 2-3 weeks.

Is there some limit to volume size?

I have to restart docker-compose to load these files but then it just keeps happening.

That sounds like a pretty serious bug! Could you please file an issue with step-by-step reproduction instructions and a diagnostic ID at https://github.com/docker/for-mac/issues?