Question: pdsolve produces faulty result on heat equation with..

can someone give help or a hint on how to overcome the faulty result in the pdsolve problem with radiation bc described in the following worksheet? I tried also with different method, but no success. the result from pdsolve makes physical no sense, because under pure radiation bc (h=0) the body should cool down and not heat up!

thanks :-)

btw, the problem was reported befor, see:

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