Missing Columns in Show Full Columns on Aurora

EDIT: Upon further investigation, I am seeing this discrepency between query results in the Query Editor and results for the same queries obtained via the RDS interface in several of the tables in my database. Although the tables look normal when queried using the Query Editor, automated queries through the RDS interface return different results for the same SQL statements. As far as I can tell this started happening on Friday, 18 Aug. I had been using this database without incident for a couple of years before that. I have not altered anything about the configuration of the database. Any insight into this would be most helpful.

I have an RDS table where I seem to get different responses to the same query depending on how I submit the query.

When I type the following SQL into the Query Editior I get the expected response:

SHOW FULL COLUMNS FROM MyDatabase.FormTypeInfos LIKE '%'

(Response downloaded as CSV by clicking 'Export to csv' button in Query Editor):

Field,Type,Collation,Null,Key,Default,Extra,Privileges,Comment
CreatedAt,varchar(30),utf8mb4_unicode_ci,NO,,NULL,,"select,insert,update,references",
ID,varchar(255),utf8mb4_unicode_ci,NO,PRI,NULL,,"select,insert,update,references",
ModifiedAt,varchar(30),utf8mb4_unicode_ci,YES,,NULL,,"select,insert,update,references",
AnnotationCount,int(11),NULL,YES,,NULL,,"select,insert,update,references",
DefaultTextColor,bigint(20),NULL,YES,,NULL,,"select,insert,update,references",
FormName,varchar(256),utf8mb4_unicode_ci,YES,,NULL,,"select,insert,update,references",
HasFormAdditions,int(11),NULL,YES,,NULL,,"select,insert,update,references",
ImportFileName,varchar(256),utf8mb4_unicode_ci,YES,,NULL,,"select,insert,update,references",
IsDeleted,int(11),NULL,YES,,NULL,,"select,insert,update,references",
IsDocumentControlled,int(11),NULL,YES,,NULL,,"select,insert,update,references",
IsForm,int(11),NULL,YES,,NULL,,"select,insert,update,references",
Owner,varchar(256),utf8mb4_unicode_ci,YES,,NULL,,"select,insert,update,references",
PortraitFontSize,int(11),NULL,YES,,NULL,,"select,insert,update,references",

When I submit the exact same query through the serverless RDS interface, I capture the following json response. The json response is lacking two columns that are present in the csv response, AnnotationCount and IsDeleted.

{"columnMetadata":[{"arrayBaseColumnType":0,"isAutoIncrement":false,"isCaseSensitive":false,"isCurrency":false,"isSigned":false,"label":"Field","name":"COLUMN_NAME","nullable":0,"precision":64,"scale":0,"schemaName":"","tableName":"COLUMNS","type":12,"typeName":"VARCHAR"},{"arrayBaseColumnType":0,"isAutoIncrement":false,"isCaseSensitive":false,"isCurrency":false,"isSigned":false,"label":"Type","name":"COLUMN_TYPE","nullable":0,"precision":65535,"scale":0,"schemaName":"","tableName":"COLUMNS","type":-1,"typeName":"MEDIUMTEXT"},{"arrayBaseColumnType":0,"isAutoIncrement":false,"isCaseSensitive":false,"isCurrency":false,"isSigned":false,"label":"Collation","name":"COLLATION_NAME","nullable":1,"precision":32,"scale":0,"schemaName":"","tableName":"COLUMNS","type":12,"typeName":"VARCHAR"},{"arrayBaseColumnType":0,"isAutoIncrement":false,"isCaseSensitive":false,"isCurrency":false,"isSigned":false,"label":"Null","name":"IS_NULLABLE","nullable":0,"precision":3,"scale":0,"schemaName":"","tableName":"COLUMNS","type":12,"typeName":"VARCHAR"},{"arrayBaseColumnType":0,"isAutoIncrement":false,"isCaseSensitive":false,"isCurrency":false,"isSigned":false,"label":"Key","name":"COLUMN_KEY","nullable":0,"precision":3,"scale":0,"schemaName":"","tableName":"COLUMNS","type":12,"typeName":"VARCHAR"},{"arrayBaseColumnType":0,"isAutoIncrement":false,"isCaseSensitive":false,"isCurrency":false,"isSigned":false,"label":"Default","name":"COLUMN_DEFAULT","nullable":1,"precision":65535,"scale":0,"schemaName":"","tableName":"COLUMNS","type":-1,"typeName":"MEDIUMTEXT"},{"arrayBaseColumnType":0,"isAutoIncrement":false,"isCaseSensitive":false,"isCurrency":false,"isSigned":false,"label":"Extra","name":"EXTRA","nullable":0,"precision":30,"scale":0,"schemaName":"","tableName":"COLUMNS","type":12,"typeName":"VARCHAR"},{"arrayBaseColumnType":0,"isAutoIncrement":false,"isCaseSensitive":false,"isCurrency":false,"isSigned":false,"label":"Privileges","name":"PRIVILEGES","nullable":0,"precision":80,"scale":0,"schemaName":"","tableName":"COLUMNS","type":12,"typeName":"VARCHAR"},{"arrayBaseColumnType":0,"isAutoIncrement":false,"isCaseSensitive":false,"isCurrency":false,"isSigned":false,"label":"Comment","name":"COLUMN_COMMENT","nullable":0,"precision":1024,"scale":0,"schemaName":"","tableName":"COLUMNS","type":12,"typeName":"VARCHAR"}],"numberOfRecordsUpdated":0,"records":[[{"stringValue":"CreatedAt"},{"stringValue":"varchar(30)"},{"stringValue":"utf8mb4_unicode_ci"},{"stringValue":"NO"},{"stringValue":""},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}],[{"stringValue":"ID"},{"stringValue":"varchar(255)"},{"stringValue":"utf8mb4_unicode_ci"},{"stringValue":"NO"},{"stringValue":"PRI"},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}],[{"stringValue":"ModifiedAt"},{"stringValue":"varchar(30)"},{"stringValue":"utf8mb4_unicode_ci"},{"stringValue":"YES"},{"stringValue":""},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}],[{"stringValue":"DefaultTextColor"},{"stringValue":"bigint(20)"},{"isNull":true},{"stringValue":"YES"},{"stringValue":""},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}],[{"stringValue":"FormName"},{"stringValue":"varchar(256)"},{"stringValue":"utf8mb4_unicode_ci"},{"stringValue":"YES"},{"stringValue":""},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}],[{"stringValue":"HasFormAdditions"},{"stringValue":"int(11)"},{"isNull":true},{"stringValue":"YES"},{"stringValue":""},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}],[{"stringValue":"ImportFileName"},{"stringValue":"varchar(256)"},{"stringValue":"utf8mb4_unicode_ci"},{"stringValue":"YES"},{"stringValue":""},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}],[{"stringValue":"IsDocumentControlled"},{"stringValue":"int(11)"},{"isNull":true},{"stringValue":"YES"},{"stringValue":""},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}],[{"stringValue":"IsForm"},{"stringValue":"int(11)"},{"isNull":true},{"stringValue":"YES"},{"stringValue":""},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}],[{"stringValue":"Owner"},{"stringValue":"varchar(256)"},{"stringValue":"utf8mb4_unicode_ci"},{"stringValue":"YES"},{"stringValue":""},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}],[{"stringValue":"PortraitFontSize"},{"stringValue":"int(11)"},{"isNull":true},{"stringValue":"YES"},{"stringValue":""},{"isNull":true},{"stringValue":""},{"stringValue":"select,insert,update,references"},{"stringValue":""}]]}

Both missing columns are integer columns, but not all integer columns are missing. I have another table that contains an IsDeleted column of type integer, but that IsDeleted column is included in both the csv and the json output in response to SHOW FULL COLUMNS for that table. Neither column name appears in the list of key words for MySQL.

Is there a reason these columns are excluded from the json output?

Thanks