In our case QSFP+ which we were using was 40km + as we were supposed to move our Passive PA to other DC.
For some reasons it was delayed and we replaced our QSFP+ with 10km range and then flapping was fixed as QSFP+ were
getting overheated due to short distance.
I will ask you to check the light levels on the QSFP?
Do you have PA recommended Vendor QSFP?
Also see if it is some bug with current version?
Also i Hope tech would have run this command less cp-log brdagent.log
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