[vdr] why can't I use TT3200 to scan high symbolrate and DVB-S2 channels with multiproto?

I receive 138 KU and I can use TT3200 to scan the following symbolrate:

12302 V 30000(DVB-S) 12401 V 22425(DVB-S) 12430 V 22425(DVB-S) 12490 V 21600(DVB-S) 12537 V 41250(DVB-S) 12646 V 22425(DVB-S)

But I can't scan the following symbolrate:

12354 V 43000(DVB-S) 12460 V 21600(DVB-S2) 12598 V 43000(DVB-S) 12720 V 43000(DVB-S)

If the symbolrate>=43000 or DVB-S2，the TT3200 can’t scan them?

I make and make install the recently multiproto.

My VDR：VDR1.7.0+H.264+xinelibputout+multiproto.

Who can tell me what I should do?

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