Originally Posted by Ataros

Guys, if you read the patch notes the purpose of this alpha-release is not to make our flying more comfortable or enjoyable but to collect crash-logs and crash-dump files. CTDs of different nature (and specific to user hardware) are hunted and fixed one-by-one as goes from naryv's comment @sukhoi.ru I refer to here http://forum.1cpublishing.eu/showthread.php?t=31835

They reworked the core of the engine (multi-threading, etc.) that took probably 4-5 months and only now they will start fixing bugs with our feedback. Disappointing ATM because of a long wait but still very promising.

Send crash-reports and logs, post issues at bugtracker and vote for them. It will take time to fix them but the progress is visible if you read the link above.