[exim] Spool file not found - related to exim_tinydb?

Hello,

Trying to solve log message like this:

1lNmTn-00126S-SH Spool file 1lNmTn-00126S-SH-D not found

I find 1lNmTn-00126S-SH-H in /var/spool/exim/input with the expected
message data, but there is no -D file as error said.

Error most only happening at cron time which includes to run exim_tinydb
for all exim databases. Can exim_tinydb cause loss of -D files? How to
prevent?

Also now we have orphan -H file for this message (and message not
delivered after error) so what is best done with the orphan?