Unknown column 'a.checksum_export' in 'field list' when trying to 'Send an Email'

My hope was to use this in a situation where client needs to export checksums and cid to then send a link from another email system.

I enabled it on 5.44 and did an export and got a checksum. yay. I then wanted to compare with one i sent via 'send an email' Action. but this task failed with

Unknown column 'a.checksum_export' in 'field list'

When I disabled the extension the email sent fine. When I re-enabled it it failed. I tried a few things like disable/reenable logging etc. no change.

We also had the Transacational email extension on here, which i disabled to check the two of them were intefering somehow. (r25600)