This log shows turning switch on which turns light on, changing CM15A to CM11A, changing back to CM15A, turning switch off which turns light off. There is a delay for the light to turn on and one for turning off after changing ports still.
2015-10-29 05:50:03.4567 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/HomeAutomation.HomeGenie/Config/Interfaces.List/
2015-10-29 05:50:07.6766 Debug 5A-02-00-E9
2015-10-29 05:50:07.6794 Debug PLCRX: 5A-02-00-E9
2015-10-29 05:50:07.6820 Debug FNMAP: 00
2015-10-29 05:50:07.6847 Debug DATA : E9
2015-10-29 05:50:07.6877 Debug 0) Address = B6
2015-10-29 05:50:08.1098 Debug 5A-02-01-E2
2015-10-29 05:50:08.1127 Debug PLCRX: 5A-02-01-E2
2015-10-29 05:50:08.1153 Debug FNMAP: 01
2015-10-29 05:50:08.1185 Debug DATA : E2
2015-10-29 05:50:08.1213 Debug 0) House code = B
2015-10-29 05:50:08.1239 Debug 0) Command = On
2015-10-29 05:50:08.1277 Info HomeAutomation.X10 B6 - Status.Level 1
2015-10-29 05:50:08.7449 Debug 04-69
2015-10-29 05:50:13.4834 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/HomeAutomation.HomeGenie/Config/Interfaces.List/
2015-10-29 05:50:14.3272 Warn Previous command timed out, resending (1)
2015-10-29 05:50:14.3316 Debug 06-62
2015-10-29 05:50:19.3360 Warn Previous command timed out, resending (1)
2015-10-29 05:50:19.3412 Info HomeAutomation.X10 A6 - Status.Level 1
2015-10-29 05:50:20.4070 Debug 55
2015-10-29 05:50:20.4095 Debug Command succesfull
2015-10-29 05:50:20.4268 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /hg/html/pages/control/widgets/homegenie/generic/light.js
2015-10-29 05:50:20.5055 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /hg/html/pages/control/widgets/homegenie/generic/switch.js
2015-10-29 05:50:20.5191 Info WebServiceGateway 192.168.0.5 HTTP GET 304 /hg/html/images/indicators/plug.png
2015-10-29 05:50:20.5550 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /hg/html/pages/control/widgets/homegenie/generic/light.html
2015-10-29 05:50:20.7949 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /hg/html/pages/control/widgets/homegenie/generic/switch.html
2015-10-29 05:50:23.4921 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/HomeAutomation.HomeGenie/Config/Interfaces.List/
2015-10-29 05:50:25.8827 Trace HomeAutomation.X10: Port=/dev/ttyAMA0
2015-10-29 05:50:26.4444 Info HomeAutomation.X10
2015-10-29 05:50:30.6675 Info MIGService.Interfaces HomeAutomation.X10 MIG Interface Options.Port /dev/ttyAMA0
2015-10-29 05:50:31.1187 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/HomeAutomation.HomeGenie/Config/Interfaces.List/
2015-10-29 05:50:31.6124 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/MIGService.Interfaces/HomeAutomation.X10/Options.Set/Port/%2Fdev%2FttyAMA0/
2015-10-29 05:50:32.0716 Trace HomeAutomation.X10: Port=USB
2015-10-29 05:50:32.2185 Info HomeAutomation.X10
2015-10-29 05:50:32.7714 Debug 9B-20-6E-02-2D-90-09-02
2015-10-29 05:50:32.7793 Debug BB-54-40-05-00-14-20-28-24-29
2015-10-29 05:50:32.7953 Debug 8B
2015-10-29 05:50:32.8207 Info MIGService.Interfaces HomeAutomation.X10 MIG Interface Options.Port USB
2015-10-29 05:50:32.8228 Debug 55
2015-10-29 05:50:32.8269 Debug 00
2015-10-29 05:50:32.8329 Debug 00-00-00-00-00-00-00-00
2015-10-29 05:50:32.8463 Debug 00
2015-10-29 05:50:33.2927 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/HomeAutomation.HomeGenie/Config/Interfaces.List/
2015-10-29 05:50:33.4446 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/HomeAutomation.HomeGenie/Config/Interfaces.List/
2015-10-29 05:50:33.7501 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/MIGService.Interfaces/HomeAutomation.X10/Options.Set/Port/USB/
2015-10-29 05:50:39.3892 Debug 5A-02-00-E9
2015-10-29 05:50:39.3921 Debug PLCRX: 5A-02-00-E9
2015-10-29 05:50:39.3947 Debug FNMAP: 00
2015-10-29 05:50:39.3975 Debug DATA : E9
2015-10-29 05:50:39.4004 Debug 0) Address = B6
2015-10-29 05:50:39.8222 Debug 5A-02-01-E3
2015-10-29 05:50:39.8250 Debug PLCRX: 5A-02-01-E3
2015-10-29 05:50:39.8275 Debug FNMAP: 01
2015-10-29 05:50:39.8303 Debug DATA : E3
2015-10-29 05:50:39.8329 Debug 0) House code = B
2015-10-29 05:50:39.8357 Debug 0) Command = Off
2015-10-29 05:50:39.8390 Info HomeAutomation.X10 B6 - Status.Level 0
2015-10-29 05:50:40.4170 Debug 04-69
2015-10-29 05:50:43.4414 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/HomeAutomation.HomeGenie/Config/Interfaces.List/
2015-10-29 05:50:46.0444 Warn Previous command timed out, resending (1)
2015-10-29 05:50:46.0493 Debug 06-63
2015-10-29 05:50:51.0545 Warn Previous command timed out, resending (1)
2015-10-29 05:50:51.0597 Info HomeAutomation.X10 A6 - Status.Level 0
2015-10-29 05:50:52.1196 Debug 55
2015-10-29 05:50:52.1221 Debug Command succesfull
2015-10-29 05:50:53.4442 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/HomeAutomation.HomeGenie/Config/Interfaces.List/
2015-10-29 05:51:03.5067 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/HomeAutomation.HomeGenie/Config/Interfaces.List/
2015-10-29 05:51:13.4598 Info WebServiceGateway 192.168.0.5 HTTP GET 200 /api/HomeAutomation.HomeGenie/Config/Interfaces.List/
I removed everything that cluttered the log up so it would be easier to read (e.g., MQTT stuff). Hopefully I didn't remove a critical message. I don't see anything that suggests it did anything different than during boot up.
I looked back in the log and I do see some errors from the boot sequence of 499 with default settings. I doubt this helps though.