PySIM: SW match failed

Dear Holger, Alexander, list In the last couple of weeks we experiencing an issue programmin the SJS1 USIm cards with PySIM. We can read them, but during programming, a lot of us got the following error: root@D6420:~/pysim# root@D6420:~/pysim# ./pySim-read.py -p 0 Reading ... ICCID: 8988211000000073729 IMSI: 901700000007372 SMSP: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ACC: 0004 MSISDN: Not available Done ! root@D6420:~/pysim# ./pySim-prog.py -p 0 -t sysmoUSIM-SJS1 -i 208920000000001 -s 8988211000000073729 -x 208 -y 92 --op=11111111111111111111111111111111 -k 8BAF473F2F8FD09487CCCBD7097C6862 -a 55127679 Insert card now (or CTRL-C to cancel) Generated card parameters : Programming ... Traceback (most recent call last): File "./pySim-prog.py", line 626, in <module> card.program(cp) File "/root/pysim/pySim/cards.py", line 438, in program r = self._scc.select_file(['3f00']) File "/root/pysim/pySim/commands.py", line 44, in select_file data, sw = self._tp.send_apdu_checksw(self.cla_byte + "a4000002" + i) File "/root/pysim/pySim/transport/__init__.py", line 87, in send_apdu_checksw raise RuntimeError("SW match failed ! Expected %s and got %s." % (sw.lower(), rv[1])) RuntimeError: SW match failed ! Expected 9000 and got 6a86. root@D6420:~/pysim# Please note that in this particular case I was trying to reprogram an SJS1 card with a card reader (and the exact command) that was worked in the past, and yet its not working now. I don't think this is a PySIM error, but more likely a Pyscard or PCSC-lite problem. I tried several Pyscard versions (1.6.10, 1.6.12, 1.6.16. 1.7.0 and 1.9.0) and the it was all the same. At this point I don't have any more ideas what to try, if anyone would have any suggestions I would apreciate it. I am certainly not alone with this issue, several folks from OpenAIR and OpenLTE are also having the very same problem. Regards, Csaba