Tabulated thermo - limited number of rows in table for cp

The following error was found in the tabulated thermo library. If I enter cp as a table with three rows Cp
( ( 290 1022.984) (1200 1346.857) (2000 1575.358) );

, then everything is OK. If I increase the number of rows in Cp table Cp
( ( 290 1022.984) (1200 1346.857) (1300 1378.296) (2000 1575.358) ); , then the thermo.correct() utility converge to nonphysical results ( boundary condition - cold side 1300, hot side 1800 K)

Temperature 900.279 out of range (1200 2000)
for nonUniformTable rho

From Foam::label Foam::nonUniformTable::index(Foam::scalar, Foam::scalar) const
in file thermophysicalFunctions/nonUniformTable/nonUniformTableThermophysicalFunctionI.H at line 41.

If I correct the table for rho (adding lower values), then I get the following error

Temperature 3518.76 out of range (290 2000)
for nonUniformTable Cp

• OpenFOAM version :v2106
• Operating system :OpenSuSE
• Hardware info :
• Compiler :clang The test case is attached buoyantCavityt.tar.xz

With regards

Vojtech