Two of the fixes below come straight from the Steam forum. Thanks for reporting them, that is how these get found.
World and fixtures
If you play a tier with several sections, season two merged them into one giant league: 30 matchdays became 94. The season rollover built the fixture list without the section. North, South and West stay apart now.
Season tickets
Small clubs never sold a single season ticket. Demand was rounded to steps of 50, anything below that fell to zero, and there it stayed: the follow-up sale works off the demand still open. A club with 120 fans used to sell 0 / 50 / 0, now it sells 23 / 30 / 10.
League table
The table used to estimate its international places and only painted them in tier 1. Now it asks the draw itself: the real cup spots are there, on every tier and in every world you built yourself.
Youth Academy
The gap between rating and potential was hooked to the academy the wrong way round: the top academy left less headroom than the shed did. Now it is the other way, 10.7 to 14.7 points from level 1 to 5.
The "Now" and "At best" columns are gone from "In training". Three pairs of numbers side by side were two too many.
Transfer market
Clicking "Offer" or "Loan out" shifted the entire table, by up to 100 pixels. Every column sits still now.
Line and role stay set when you go somewhere else and come back.
Other
The English game showed "Stehplatz" and "Sitzplatz" in German. Four places translated before the language was even set.
The team talk could be repeated by paging back, twice the morale and twice the fitness. One per moment now.
In borderless mode the Windows taskbar sat on top of the picture. Fullscreen is also no longer a setting, it is always on.
The bid field stops inventing decimals ("7.9699999").
Secondary sponsor cards keep their size, no matter how many offers are on the table.
The "Team sheet" column now carries a dot and a word instead of three different shapes.
Tell me what you run into.