@rich_woods: Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

Click the icon to open the program-->crash 100%
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.3.3

Error message:
Error reading CurrentOpenAction.Hint: Property Hint does not exist

Stack trace:
(00215C87) System::Classes::_17619
(00217541) System::Classes::TReader::ReadDataInner
(00217523) System::Classes::TReader::ReadData
(0022519D) System::Classes::TComponent::ReadState
(002175B5) System::Classes::TReader::ReadDataInner
(00217523) System::Classes::TReader::ReadData
(0022519D) System::Classes::TComponent::ReadState
(002175B5) System::Classes::TReader::ReadDataInner
(002174F4) System::Classes::TReader::ReadData
(0022519D) System::Classes::TComponent::ReadState
(0021239A) System::Classes::TStream::ReadComponent
(00207DDF) System::Classes::_17089
(00209733) System::Classes::_17116
(002097C1) System::Classes::InitInheritedComponent
(00226BD0) System::Classes::TDataModule::TDataModule
(00047DFE) TNonVisualDataModule::TNonVisualDataModule
(00119ED5) Execute
(000031E3) wWinMain
(00E200C1) __wstartup
(0006AE39) ntdll.dll
(0006ADBA) ntdll.dll

(00217B13) System::Classes::_17687
(00217D4D) System::Classes::TReader::ReadProperty
(00217541) System::Classes::TReader::ReadDataInner
(00217523) System::Classes::TReader::ReadData
(0022519D) System::Classes::TComponent::ReadState
(002175B5) System::Classes::TReader::ReadDataInner
(00217523) System::Classes::TReader::ReadData
(0022519D) System::Classes::TComponent::ReadState
(002175B5) System::Classes::TReader::ReadDataInner
(002174F4) System::Classes::TReader::ReadData
(0022519D) System::Classes::TComponent::ReadState
(0021239A) System::Classes::TStream::ReadComponent
(00207DDF) System::Classes::_17089
(00209733) System::Classes::_17116
(002097C1) System::Classes::InitInheritedComponent
(00226BD0) System::Classes::TDataModule::TDataModule
(00047DFE) TNonVisualDataModule::TNonVisualDataModule
(00119ED5) Execute
(000031E3) wWinMain
(00E200C1) __wstartup
(0006AE39) ntdll.dll
(0006ADBA) ntdll.dll

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

@milind.kulkarni: Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.1.1

Error message:
Error reading TransferDropDown.DropDownList: Property DropDownList does not exist

Stack trace:
(00203863) System::Classes::_17619
(0020511D) System::Classes::TReader::ReadDataInner
(002050FF) System::Classes::TReader::ReadData
(00212D79) System::Classes::TComponent::ReadState
(00205191) System::Classes::TReader::ReadDataInner
(002050FF) System::Classes::TReader::ReadData
(00212D79) System::Classes::TComponent::ReadState
(00204F77) System::Classes::TReader::ReadComponent
(00205191) System::Classes::TReader::ReadDataInner
(002050FF) System::Classes::TReader::ReadData
(00212D79) System::Classes::TComponent::ReadState
(00204F77) System::Classes::TReader::ReadComponent
(00205191) System::Classes::TReader::ReadDataInner
(002050D0) System::Classes::TReader::ReadData
(00212D79) System::Classes::TComponent::ReadState
(003AF7C9) Vcl::Forms::TCustomForm::ReadState
(002060AB) System::Classes::TReader::ReadRootComponent
(001FFF76) System::Classes::TStream::ReadComponent
(001F59BB) System::Classes::_17089
(001F730F) System::Classes::_17116
(001F739D) System::Classes::InitInheritedComponent
(003AEFC2) Vcl::Forms::TCustomForm::TCustomForm
(00004E16) Vcl::Forms::TForm::TForm
(00004274) TCustomScpExplorerForm::TCustomScpExplorerForm
(000562FE) TScpCommanderForm::TScpCommanderForm
(003B9F72) Vcl::Forms::TApplication::CreateForm
(00EBE3B7) _SafeFormCreate
(000027EF) wWinMain
(01001521) C5951_0
(00066BBC) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B89) ntdll.dll.RtlGetAppContainerNamedObjectPath

(002056EF) System::Classes::_17687
(00205929) System::Classes::TReader::ReadProperty
(0020511D) System::Classes::TReader::ReadDataInner
(002050FF) System::Classes::TReader::ReadData
(00212D79) System::Classes::TComponent::ReadState
(00205191) System::Classes::TReader::ReadDataInner
(002050FF) System::Classes::TReader::ReadData
(00212D79) System::Classes::TComponent::ReadState
(00204F77) System::Classes::TReader::ReadComponent
(00205191) System::Classes::TReader::ReadDataInner
(002050FF) System::Classes::TReader::ReadData
(00212D79) System::Classes::TComponent::ReadState
(00204F77) System::Classes::TReader::ReadComponent
(00205191) System::Classes::TReader::ReadDataInner
(002050D0) System::Classes::TReader::ReadData
(00212D79) System::Classes::TComponent::ReadState
(003AF7C9) Vcl::Forms::TCustomForm::ReadState
(002060AB) System::Classes::TReader::ReadRootComponent
(001FFF76) System::Classes::TStream::ReadComponent
(001F59BB) System::Classes::_17089
(001F730F) System::Classes::_17116
(001F739D) System::Classes::InitInheritedComponent
(003AEFC2) Vcl::Forms::TCustomForm::TCustomForm
(00004E16) Vcl::Forms::TForm::TForm
(00004274) TCustomScpExplorerForm::TCustomScpExplorerForm
(000562FE) TScpCommanderForm::TScpCommanderForm
(003B9F72) Vcl::Forms::TApplic

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.21.7

Error message:
Error reading RemoteFindFilesAction.yCaption&Find Files...HelpKeyword task_findHint,Find files|Find remote files and directories
ImageIndex_

Stack trace:
(003B8B37) System::Classes::_17619
(003BA3F1) System::Classes::TReader::ReadDataInner
(003BA3D3) System::Classes::TReader::ReadData
(003C804D) System::Classes::TComponent::ReadState
(003BA465) System::Classes::TReader::ReadDataInner
(003BA3D3) System::Classes::TReader::ReadData
(003C804D) System::Classes::TComponent::ReadState
(003BA465) System::Classes::TReader::ReadDataInner
(003BA3A4) System::Classes::TReader::ReadData
(003C804D) System::Classes::TComponent::ReadState
(003B524A) System::Classes::TStream::ReadComponent
(003AAC8F) System::Classes::_17089
(003AC5E3) System::Classes::_17116
(003AC671) System::Classes::InitInheritedComponent
(003C9654) System::Classes::TDataModule::TDataModule
(00041B5A) TNonVisualDataModule::TNonVisualDataModule
(001091BB) Execute
(000027FA) wWinMain
(00FDD7D5) __wstartup
(00066BBC) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B89) ntdll.dll.RtlGetAppContainerNamedObjectPath

(003BA9C3) System::Classes::_17687
(003BABFD) System::Classes::TReader::ReadProperty
(003BA3F1) System::Classes::TReader::ReadDataInner
(003BA3D3) System::Classes::TReader::ReadData
(003C804D) System::Classes::TComponent::ReadState
(003BA465) System::Classes::TReader::ReadDataInner
(003BA3D3) System::Classes::TReader::ReadData
(003C804D) System::Classes::TComponent::ReadState
(003BA465) System::Classes::TReader::ReadDataInner
(003BA3A4) System::Classes::TReader::ReadData
(003C804D) System::Classes::TComponent::ReadState
(003B524A) System::Classes::TStream::ReadComponent
(003AAC8F) System::Classes::_17089
(003AC5E3) System::Classes::_17116
(003AC671) System::Classes::InitInheritedComponent
(003C9654) System::Classes::TDataModule::TDataModule
(00041B5A) TNonVisualDataModule::TNonVisualDataModule
(001091BB) Execute
(000027FA) wWinMain
(00FDD7D5) __wstartup
(00066BBC) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B89) ntdll.dll.RtlGetAppContainerNamedObjectPath

The problem happens rarely. I cannot reproduce it.