2666617 - IMDB startup fails with error 899 followed by error 926 - SAP ASE

• On startup ASE errorlog reports error 899 on an in-memory database (IMDB):

Error: 899, Severity: 21, State: 1
The page 24 requested for in-memory database 'IMDB_tempdb' (12), object '' (99) was not found in in-memory storage cache 'default data cache' (id 0).
 Please contact Sybase Technical Support.

• Subsequent starts fails with error 926:

Error: 926, Severity: 14, State: 1
Database 'IMDB_tempdb' cannot be opened. An earlier attempt at recovery marked it 'suspect'.
Check the ASE errorlog for information as to the cause.

SAP Adaptive Server Enterprise (ASE) - Any version that supports IMDB feature

KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem