update to new version lose database

[xiangxud]

When I update to the latest version (GIT clone from default dev branch), my database loses one of the multiple databases I created in the old version。

Why? How do I restore this database。
Is the version number unchanged？
taos -C
taos global config:

serverPort: 6030
arbitrator:
maxNumOfDistinctRes: 10000000
compressMsgSize: -1
compressColData: -1
maxSQLLength: 1048576(byte)
maxWildCardsLength: 100(byte)
maxRegexStringLen: 128(byte)
maxNumOfOrderedRes: 100000
keepColumnName: 0
timezone:
locale:
charset:
gitinfo: dfc46eb
gitinfoOfInternal: dfc46eb
buildinfo: Built at 2021-09-16 12:39:43
version: 2.1.7.2

[aloscha1]

It appears that there is a problem with the update process that is causing the loss of one of your databases. To restore the missing database, you can try to check if the backup files are available and restore them. Additionally, you may want to review the upgrade process to ensure that all databases are migrated properly.

The version number you provided is 2.1.7.2 and appears to be unchanged. However, it is always a good idea to double check the version after the update to make sure it is the same or if there are any changes.