Increased error rate for Python transformations

We're seeing increased user error rate in Python transformation jobs since May 25 16:08 UTC. Most common error message is "ERROR: pip's dependency resolver does not currently take into account all the packages that are installed." but also other errors may appear.

We're sorry for this inconvenience, we're actively investigating the issue. Next update in 30 minutes

Update 07:28 UTC: We have rolled back Python transformations from version 1.4.1 to version 1.4.0 and everything seems to be working again. If you encounter further issues please get in touch with us. We'll be monitoring this issue and post an update in one hour. 

Update 08:36 UTC: The situation is stable, we're not seeing any further errors since the rollback. Please accept our apology for the inconvenience.