Users withdraw Ae on the Gate exchange. Because multiple users reported that the withdrawal failed due to the rollback of microblocks, Gate has announced that it will stop withdrawing AE

[dimitar.chain]

This had been already reported as an issue and we’ve identified a prime candidate why this happens in the first place. You can check this thread:

Transaction broadcasted and then not found

So the rabbit whole lead me to a certain race condition in nodes communication. There was a lot of digging and eventually I was able to expose this an actually issue in a reproducible test. All tracked and already fixed in this PR. The fix would be deployed in the next release. In advance: I have no proof this is what we are facing on main net. It is extremely hard to debug in such distributed environment, especially we don’t have any access to the interesting logs. What I am sure is that this …

This is already fixed in master branch and will be deployed in 5.10.0. We are also working on another feature to improve it even further. We plan on releasing 5.10.0 ASAP.