Error and Engine Shutdown Error

[AVGA]

Downloaded latest update, and now every time I begin to add throttle to taxi after pushback, the engines suddenly shut down, and I get a “mailbox error” on the center display screen in orange, with odd transponder errors in blue under it. Have to start APU and restart engines, at which time everything comes back online, with no loss of flight data or previously set controls. But error will repeat … with only fix appearing to be pressing the Mailbox button. 
 

Didn’t have this issue on previous version, and happens on 900 and 1000 series aircraft. Would love to know if it’s a bug, or something specific to my system. Thx. 

Edited March 23 by AVGA
Typo

[FutureYT]

14 minutes ago, AVGA said:

Would love to know if it’s a bug, or something specific to my system

I haven't had this issue but it could be some circumstances you were under. Would you be able to upload a video of this issue (maybe from before you pushback to the first or second time the issue happens). Thanks!

[AVGA]

Two photos of the problem attached. Happens every time now since latest update, but clicking the Mailbox button seems to prevent it from happening a second time. 

Cleared WASM folder and still no joy. Can try a fresh install as a last resort, I guess?

Edited March 23 by AVGA