XO did not trim after 200 attempts.

Anyone know what these errors are? This is a 450b HG 3GHz using 16.2.1.

Software Version : CANOPY 16.2.1 SM
Board Type : P15
Board Temperature : 48 C / 118 F
Device Setting : 3GHz MIMO OFDM - Subscriber Module - 0a-00-3e-44-1c-5e
FPGA Version : 111919;
08/04/2020 : 08:26:36 UTC : Spectrum Analysis for CBRS complete for 10 seconds.;
08/04/2020 : 01:26:52 PDT : :Timezone set to PDT;
08/04/2020 : 01:53:35 PDT : :XO did not trim after 200 attempts. FPGA TCXO/XO compare:79999947 46°C
08/04/2020 : 01:55:16 PDT : :Time Set

Here's another SM:

07/31/2020 : 01:13:06 PDT : :Error:Sounding IQ capture FIFO overflow: 0xf0001620 = 0xc005000e
07/31/2020 : 01:28:41 PDT : :XO did not trim after 200 attempts. FPGA TCXO/XO compare:79999905 32°C
07/31/2020 : 00:35:23 PST : :Timezone set to PST;
07/31/2020 : 02:02:48 PDT : :Timezone set to PDT;
07/31/2020 : 02:03:01 PDT : :Time Set
08/03/2020 : 23:30:51 PST : :Timezone set to PST;
08/03/2020 : 23:56:02 PST : :XO did not trim after 200 attempts. FPGA TCXO/XO compare:79999895 28°C
08/04/2020 : 00:02:17 PST : :XO did not trim after 200 attempts. FPGA TCXO/XO compare:79999892 27°C
08/04/2020 : 01:11:07 PDT : :Timezone set to PDT;
08/04/2020 : 00:17:58 PST : :Timezone set to PST;
08/04/2020 : 00:23:03 PST : :XO did not trim after 200 attempts. FPGA TCXO/XO compare:79999904 27°C
08/04/2020 : 00:29:17 PST : :XO did not trim after 200 attempts. FPGA TCXO/XO compare:79999922 27°C
08/04/2020 : 00:42:18 PST : :XO did not trim after 200 attempts. FPGA TCXO/XO compare:79999890 27°C
08/04/2020 : 00:42:27 PST : :Stuck Session: Data (LUID 22) (1)

Seen them but not sure what causes it.  I think we have only seen them on high gains.  Generally we have the ISP swap the radio because we only have seen this particular error when they call in with problems.  Haven't seen it yet on a radio that was fine.