Connecting to ASE 15.5 or 15.7 - System.FormatException Input string was not in a correct format (4290358)

Connecting to ASE 15.5. database results in the following error:

System.FormatException Input string was not in a correct format. Stack Trace: at System.Number.ParseDouble(String value, NumberStyles options, NumberFormatInfo numfmt) at Quest.Toad.Sybase.Trl.TypeListTrl.GetTrls() at Quest.Toad.Trl.TrlExtensions.GetTrls(ITrl trl) at Quest.Toad.DatabaseBrowser.ObjectPaletteControl.AnySchemaTrl() at Quest.Toad.DatabaseBrowser.ObjectPaletteControl.RebuildUI() at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme) at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj) at System.Threading.ExecutionContext.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme) at System.Windows.Forms.Control.InvokeMarshaledCallbacks() ToadSupportBundleToad for Sybase.zp attached. rename to *.zip and unpack.