So having shut the engine down and landed in KHI and had it cleared by an Engineer, who would not have then departed to BKK?
The next event - we don't know enough - what had been said or found in KHI - at what point in the flight to BKK did the message reappear-was it an intermittant indication?
What engineering input was there in BKK? The crew departing BKK seem to have done the right thing when the message reappeared.
Whilst acknowledging how unpleasant this must have been, every airline I've been in has at some point had a nasty reoccuring and embarrassing snag of something like this to deal with.
Theres a lot of vitriol about RBA but I know a number of good professional guys who have been there for many years and do not plan to leave.