Memory leaks after opening Session Frontend

When I open Session Frontend, the editor consumes up to 10 GiB RAM.
The message is displayed

2021.02.26-17.07.29 [QWE100-12164] 00288.302: LogAutomationTest: Automation Test ‘FBlockStructureSpec’
took > 10 seconds to return from
GetTests(…): 184.56s

UE 4.26.1

Does anyone know how to fix this?

just as a hint
replacing the dbghelp.dll with a newer version as suggested in

helped me

I had problems starting the session front end

and this helped me so that it at least opens again,
FBlockStructureSpec still warns but at least only with ~40s