Problems since upgrade to v5.4.3

[M0XTY]

Since I upgraded to v5.4.3 I have noticed three separate problems, some more frustrating than others.

I use a cloud since logbook, but the application appears to be downloading the logbook from the cloud more frequently than it uploads.
This means that if I make changes to my logbook, such as changing names, QTH, frequency, etc, after a while it reverts to the original data.
I can see that on my iPhone app, which is also cloud synced, I am missing a number of QSOs.

Secondly, and it might be linked, I have noticed that when I upload to LOTW, even if I select new QSOs only, it is uploading all of my QSOs since I upgraded RUMlogNG.

Thirdly, auto uploading QSOs from WSJT-X to RUMlogNG doesn't appear to work anymore. Or, is intermittent at best. Out of my last 20 QSOs, it has only automatically uploaded one. The popup box appears, but when I press OK, nothing happens, and I lose the QSO details.

Like I say, I have only noticed these problems in the last 48 hours, which ties in with when I updated to v5.4.3.

[M0XTY]

Have downgraded to 5.4.2 and seems much more stable.

Logbook seems stable.
Logbook has synced across to iPhone straight away.
QSOs are importing from WSJT-X.

Definitely think there is something up with v5.4.3 but not sure why no one else is reporting issues!

[M0XTY]

This same problem is occurring in 5.5.

Trying to find a copy of 5.4.2 to downgrade to, as I don't have problems with that version.