In my opinion,
reinstalling the engine will never give an insight how the situation went so bad.
Currently, at least the HE can live migrate between host1 & host3 and most probably will power up properly in case of serious problems.
Yet, it's quite strange why the setup of host2 failsand on top of that the symbolic links to the relevant storage are missing.
Marco,
let's have a separate thread for the host2 issue.
Best Regards,
Strahil Nikolov