Getting an error when checking the Segments in the Explorer (4333332)

The error only happens the first time one access to each segment. Once the error appears, then it is possible to  see the information.

The error is
System.FormatException
The String to parse is not in the expected Format
Stack Trace:

Server stack trace:
en Sybase.Data.AseClient.BcdDecimal.Parse(String s)
en Sybase.Data.AseClient.AseDecimal.Parse(String s)
en Quest.Toad.SAP.Trl.ASE.Tabs.SegmentInfoTab.trl_QueryDone(Object sender, EventArgs e)
en Quest.Toad.Trl.BaseSqlTrl.CompletelyDone(Boolean hasLock)

Exception rethrown at [0]:
en Quest.Toad.Util.Global.RethrowKeepingStackTrace(Exception e)
en Quest.Toad.Trl.BaseSqlTrl.OnFetchException(Exception exc, Boolean notificationManager)
en Quest.Toad.Trl.BaseSqlTrl.CompletelyDone(Boolean hasLock)
en Quest.Toad.Trl.BaseSqlTrl.Done(Object sender, EventArgs args)
en Quest.Toad.Trl.BaseSqlTrl.AsyncDone(Object sender)