In moving from 5.49 to 5.50 we seem to lose a table. All civimails generate a "DB missing table error" and the logs show the following. We get this error with all of the new versions of 50+ but not the last version of 49.
Jul 29 10:45:54 [error] $Fatal Error Details = Array ( [callback] => Array ( [0] => CRM_Core_Error [1] => exceptionHandler )
[code] => -18 [message] => DB Error: no such table [mode] => 16 [debug_info] => SELECT
a
.id
ASid
,a
.name
ASname
,a
.label
ASlabel
,a
.description
ASdescription
,a
$ FROM civicrm_search_segment a ORDER BYlabel
ASC [nativecode=1146 ** Table 'civicrm.civicrm_search_segment' doesn't exist] [type] => DB_Error [user_info] => SELECTa
.id
ASid
,a
.name
ASname
,a
.label
ASlabel
,a
.description
ASdescription
,a
.$ FROM civicrm_search_segment a ORDER BYlabel
ASC [nativecode=1146 ** Table 'civicrm.civicrm_search_segment' doesn't exist] [to_string] => [db_error: message="DB Error: no such table" code=-18 mode=callback callback=CRM_Core_Error::exceptionHandler p$ FROM civicrm_search_segment a ORDER BYlabel
ASC [nativecode=1146 ** Table 'civicrm.civicrm_search_segment' doesn't exist]"]
cv ext:upgrade-db